Aktüel

Husni Koc, Selami Palaz, Amirullah M. Mamedov and Ekmel Ozbay “Optical, electronic, and elastic properties of some A5B6C7 ferroelectrics (A=Sb, Bi; B=S, Se; C=I, Br, Cl): First principle calculation” Ferroelectrics, vol. 511, 22–34, 2017

Selami Palaz, Oral Oltulu, Amirullah M. Mamedov and Ekmel Ozbay “AVBVICVII ferroelectrics as novel materials for phononic crystals” Ferroelectrics, vol. 511, 12–21, 2017

Husni Koc, Selami Palaz, Amirullah M. Mamedov and Ekmel Ozbay “Optical, electronic, and elastic properties of some A5B6C7 ferroelectrics (A=Sb, Bi; B=S, Se; C=I, Br, Cl): First principle calculation” Ferroelectrics, vol. 511, 22–34, 2017

Amir Ghobadi, Sina Abedini Dereshgi, Hodjat Hajian, Berkay Bozok, Bayram Butun and Ekmel Ozbay “Ultra-broadband, wide angle absorber utilizing metal insulator multilayers stack with a multithickness metal surface texture” Scientific Reports vol.7, no. 4755, 1-10, 2017

Hodjat Hajian, Ekmel Ozbay and Humeyra Caglayan “Beaming and enhanced transmission through a subwavelength aperture via epsilon-near-zero media” Scientific Reports vol. 7, no. 4741, 1-8, 2017

Hodjat Hajian, Amir Ghobadi, Sina Abedini Dereshgi, Bayram Butun and Ekmel Ozbay “Hybrid plasmon–phonon polariton bands in graphene–hexagonal boron nitride metamaterials [Invited]” Journal of the Optical Society of America B vol. 34, No. 7, 29-35, 2017

Mohamed ElKabbash, Alireza R. Rashed, Betul Kucukoz, Quang Nguyen, Ahmet Karatay, Gul Yaglioglu, Ekmel Ozbay, Humeyra Caglayan and Giuseppe Strangi “Ultrafast transient optical loss dynamics in exciton–plasmon nano-assemblies” Nanoscale, 9, 6558–6566, 2017

Kutlu, E, Narin, P, Atmaca, G, Sarikavak-Lisesivdin, B, Lisesivdin, SB, Ozbay, E “Electronic structure of beta-Si3N4 crystals with substitutional icosagen group impurities” Journal Of Optoelectronics and Advanced Materials vol. 19, Issue: 3-4, Pages: 278-282, 2017

Selman Ağızaçmak, Remziye Tülek, Sibel Gökden, Ali Teke, Engin Arslan, Ayşe Melis Aygar, Ekmel Özbay “Transport properties of epitaxial graphene grown on SiC substrate” Optoelectronics And Advanced Materials – Rapid Communications vol. 11, no. 3-4, p. 197 – 201, 2017

E. Gungor, T. Gungor, D. Caliskan and E. Ozbay “Synthesis and Optical Properties of Co and Zn-Based Metal Oxide Nanoparticle Thin Films” Acta Physica Polonica A, vol.131, no.3, 500-503, 2017

O. Oltulu, A. M. Mamedov, and E. Ozbay, “Band gap structure of elliptic rods in water for a 2D phononic crystal,” Appl. Phys. A Mater. Sci. Process., vol. 123, no. 3, pp. 1–6, 2017.

E. Arslan, M. K. Öztürk, E. Tıraş, T. Tıraş, S. Özçelik, and E. Özbay, “Buffer effects on the mosaic structure of the HR-GaN grown on 6H-SiC substrate by MOCVD,” J. Mater. Sci. Mater. Electron., vol. 28, no. 4, pp. 3200–3209, 2017.

İ. Kars Durukan, M. K. Ozturk, S. Ozcelik, and E. Ozbay, “Analysis of the Mosaic Defects in Graded and Non Graded InxGa1‐xN Solar Solar Cell Structures,” Süleyman Demirel Üniversitesi Fen Bilim. Enstitüsü Derg., vol. 21, no. 1, p. 235, 2017.

H. Hajian, H. Caglayan, and E. Ozbay, “Long-range Tamm surface plasmons supported by graphene-dielectric metamaterials,” J. Appl. Phys., vol. 121, no. 3, 2017.

E. Arslan, Ş. Ardalı, E. Tıraş, S. Çakmakyapan, and E. Özbay, “The transport properties of Dirac fermions in chemical vapour-deposited single-layer graphene,” Philos. Mag., vol. 97, no. 3, pp. 187–200, 2017.

O. Oltulu, A. M. Mamedov, and E. Ozbay, “Wave propagation and acoustic band gaps of two-dimensional liquid crystal/solid phononic crystals,” Appl. Phys. A Mater. Sci. Process., vol. 123, no. 1, pp. 1–7, 2017.

S. Simsek, S. Palaz, A. M. Mamedov, and E. Ozbay, “Spectral scalability and optical spectra of fractal multilayer structures: FDTD analysis,” Appl. Phys. A Mater. Sci. Process., vol. 123, no. 1, pp. 4–8, 2017.

A. M. Aygar, O. Balci, S. Cakmakyapan, C. Kocabas, H. Caglayan, and E. Ozbay, “Comparison of Back and Top Gating Schemes with Tunable Graphene Fractal Metasurfaces,” ACS Photonics, vol. 3, no. 12, pp. 2303–2307, 2016.

A. N. E. S. Erebryannikov, E. V. C. Olak, and T. H. M. Agath, “Two types of single-beam deflection and asymmetric transmission in photonic structures without interface corrugations,” vol. 33, no. 12, pp. 2450–2458, 2016.

E. Ozgun, E. Ozbay, and H. Caglayan, “Tunable Zero-Index Photonic Crystal Waveguide for Two-Qubit Entanglement Detection,” ACS Photonics, vol. 3, no. 11, pp. 2129–2133, 2016.

O. Ozdemir, A. M. Aygar, O. Balci, C. Kocabas, H. Caglayan, and E. Ozbay, “Enhanced tunability of V-shaped plasmonic structures using ionic liquid gating and graphene,” Carbon N. Y., vol. 108, pp. 515–520, 2016.

E. Kutlu, P. Narin, G. Atmaca, B. Sarikavak-Lisesivdin, S. B. Lisesivdin, and E. Ozbay, “Effect of substitutional As impurity on electrical and optical properties of b-Si3N4 structure,” Mater. Res. Bull., vol. 83, pp. 128–134, 2016.

M. C. Cakir, D. Caliskan, B. Butunn, and E. Ozbay, “Planar indium tin oxide heater for improved thermal distribution for metal oxide micromachined gas sensors,” Sensors (Switzerland), vol. 16, no. 10, 2016.

P. Narin, E. Kutlu, B. Sarikavak-Lisesivdin, S. B. Lisesivdin, and E. Özbay, “Electronic properties of Li-doped zigzag graphene nanoribbons,” Phys. E Low-Dimensional Syst. Nanostructures, vol. 84, pp. 543–547, 2016.

S. Ardali, E. Tiras, E. Arslan, and E. Ozbay, “Complementary and alternative technique for the determination of electron effective mass : quantum Hall effect,” vol. 10, no. 9, pp. 647–650, 2016.

M. Copuroglu, D. Caliskan, H. Sezen, E. Ozbay, and S. Suzer, “Location and Visualization of Working p-n and/or n-p Junctions by XPS,” Sci. Rep., vol. 6, no. April, p. 32482, 2016.

H. Hajian, E. Ozbay, and H. Caglayan, “Enhanced transmission and beaming via a zero-index photonic crystal,” Appl. Phys. Lett., vol. 109, no. 3, 2016.

S. Çörekçi et al., “Characterization of AlInN/AlN/GaN Heterostructures with Different AlN Buffer Thickness,” J. Electron. Mater., vol. 45, no. 7, pp. 3278–3284, 2016.

H. Hajian, I. D. Rukhlenko, P. T. Leung, H. Caglayan, and E. Ozbay, “Guided Plasmon Modes of a Graphene-Coated Kerr Slab,” Plasmonics, vol. 11, no. 3, pp. 735–741, 2016.

E. Colak, A. E. Serebryannikov, P. V. Usik, and E. Ozbay, “Diffraction inspired unidirectional and bidirectional beam splitting in defect-containing photonic structures without interface corrugations,” J. Appl. Phys., vol. 119, no. 19, 2016.

A. Serebryannikov, A. Akhtakia, and O. Ekmel, “Single and cascaded, magnetically controllable metasurfaces as terahertz filters,” J. Opt. Soc. Am. B, vol. 33, no. 5, pp. 834–841, 2016.

Y. Ozturk, A. E. Yilmaz, and E. Ozbay, “Conversion from constitutive parameters to dispersive transmission line parameters for multi-band metamaterials,” Waves in Random and Complex Media, vol. 5030, no. January, pp. 1–13, 2016.

O. Oltulu, S. Simsek, A. M. Mamedov, and E. Ozbay, “Topological insulator based locally resonant phononic crystals: Wave propagation and acoustic band gaps,” Ferroelectrics, vol. 499, no. 1, pp. 123–129, 2016.

H. Ozisik, S. Simsek, E. Deligoz, A. M. Mamedov, and E. Ozbay, “Optical and electronic properties of orthorhombic and trigonal AXO 3 (A=Cd, Zn; X=Sn, Ge): First principle calculation,” Ferroelectrics, vol. 498, no. 1, pp. 73–79, 2016.

Z. Ozer, A. M. Mamedov, and E. Ozbay, “BaTiO3 and TeO2 based gyroscopes for guidance systems: FEM analysis,” Ferroelectrics, vol. 497, no. 1, pp. 15–23, 2016.

A. E. Serebryannikov, E. Colak, A. Petrov, P. V. Usik, and E. Ozbay, “Multifrequency spatial filtering: A general property of two-dimensional photonic crystals,” Photonics Nanostructures - Fundam. Appl., vol. 18, pp. 1–9, 2016.

I. Kars Durukan et al., “Examination of the temperature related structural defects of InGaN/GaN solar cells,” Superlattices Microstruct., vol. 86, pp. 379–389, 2015.

A. E. Serebryannikov, M. Mutlu, and E. Ozbay, “Dielectric inspired scaling of polarization conversion subwavelength resonances in open ultrathin chiral structures,” Appl. Phys. Lett., vol. 107, no. 22, 2015.

A. E. Serebryannikov, S. Nojima, K. B. Alici, and E. Ozbay, “Effect of in-material losses on terahertz absorption, transmission, and reflection in photonic crystals made of polar dielectrics,” J. Appl. Phys., vol. 118, no. 13, 2015.

F. T. Gundogdu, A. E. Serebryannikov, A. O. Cakmak, and E. Ozbay, “Asymmetric transmission in prisms using structures and materials with isotropic-type dispersion,” Opt. Express, vol. 23, no. 19, p. 24120, 2015.

P. Aydogan, E. Arslan, S. Cakmakyapan, E. Ozbay, W. Strupinski, and S. Suzer, “Voltage contrast X-ray photoelectron spectroscopy reveals graphene-substrate interaction in graphene devices fabricated on the C- and Si- faces of SiC,” Appl. Phys. Lett., vol. 107, no. 12, pp. 15–20, 2015.

D. Caliskan, H. Sezen, E. Ozbay, and S. Suzer, “Chemical Visualization of a GaN p-n junction by XPS,” Sci. Rep., vol. 5, no. 1, p. 14091, 2015.

S. Simsek, H. Koc, S. Palaz, O. Oltulu, A. M. Mamedov, and E. Ozbay, “Dynamic Nonlinear Optical Processes in Some Oxygen-Octahedra Ferroelectrics: First Principle Calculations,” Ferroelectrics, vol. 483, no. 1, pp. 26–42, 2015.

H. Koc, S. Simsek, A. M. Mamedov, and E. Ozbay, “Optical Properties of the Narrow-Band Ferroelectrics: First Principle Calculations,” vol. 193, no. November, 2015.

N. A. Cinel, S. Cakmakyapan, S. Butun, G. Ertas, and E. Ozbay, “E-Beam lithography designed substrates for surface enhanced Raman spectroscopy,” Photonics Nanostructures - Fundam. Appl., vol. 15, pp. 109–115, 2015.

A. E. Serebryannikov, M. Beruete, M. Mutlu, and E. Ozbay, “Multiband one-way polarization conversion in complementary split-ring resonator based structures by combining chirality and tunneling.,” Opt. Express, vol. 23, no. 10, pp. 13517–29, 2015.

B. Sarikavak-Lisesivdin et al., “Energy Relaxation of Electrons in InGaN Quantum Wells,” Metall. Mater. Trans. A, vol. 46, no. April, pp. 1565–1569, 2015.

A. Ceylan, A. K. Rumaiz, D. Caliskan, S. Ozcan, E. Ozbay, and J. C. Woicik, “Effects of rapid thermal annealing on the structural and local atomic properties of ZnO: Ge nanocomposite thin films,” J. Appl. Phys., vol. 117, no. 10, 2015.

M. Turduev et al., “Two-dimensional complex parity-time-symmetric photonic structures,” Phys. Rev. A - At. Mol. Opt. Phys., vol. 91, no. 2, pp. 1–5, 2015.

Hikmet Sezen, Ekmel Ozbay , Sefik Suzer , “XPS for probing the dynamics of surface voltage and photovoltage in GaN,” Applied Surface Science 323, 25 (2014).

Andriy E. Serebryannikov, Shunji Nojima and Ekmel Ozbay “One-way absorption of terahertz waves in rod-type and multilayer structures containing polar dielectrics” Physical Review B 90, 235126 (2014).

Filiz Karaomerlioglu, Amirullah M. Mamedov, and Ekmel Ozbay, “Organic semiconductor-based photonic crystals for solar cell arrays: band gap and optical properties,” Journal of Modern Optics 61, 1754 (2014).

Semih Cakmakyapan, Humeyra Caglayan, and Ekmel Ozbay, “Coupling enhancement of split ring resonators on graphene,” Carbon 80, 351 (2014).

Filiz Karaomerlioglu, Sevket Simsek, Amirullah M. Mamedov, and Ekmel Ozbay, “Ferroelectric Based Photonic Crystal Cavity by Liquid Crystal Infiltration,” Integrated Ferroelectrics 158, 1 (2014).

Zhaofeng Li, Semih Cakmakyapan, Bayram Butun, Christina Daskalaki, Stelios Tzortzakis, Xiaodong Yang, and Ekmel Ozbay, “Fano resonances in THz metamaterials composed of continuous metallic wires and split ring resonators,” Optics Express 22, 26572 (2014).

Andriy E. Serebryannikov, Philippe Lalanne, Alexander Yu. Petrov, and Ekmel Ozbay, “Wide-angle reflection-mode spatial filtering and splitting with photonic crystal gratings and single-layer rod gratings,” Optics Letters 39, 6193 (2014).

Filiz Karaomerlioglu, Amirullah M. Mamedov, and Ekmel Ozbay, “Optical properties of metamaterial-based devices modulated by a liquid crystal,” Applied Physics A 117, 6111 (2014).

Ebru Gungor, Tayyar Gungor, Deniz Caliskan, Abdullah Ceylan, and Ekmel Ozbay, “Co doping induced structural and optical properties of sol–gel prepared ZnO thin films,” Applied Surface Science 318, 309 (2014).

Deniz Çalışkan, Bayram Bütün, M. Cihan Çakır, Şadan Özcan,, and Ekmel Ozbay, “Low dark current and high speed ZnO metal–semiconductor–metal photodetector on SiO2/Si substrate,” Applied Physics Letters 105, 161108 (2014).

Tymoteusz Ciuk, Semih Cakmakyapan, Ekmel Ozbay, Piotr Caban, Kacper Grodecki, Aleksandra Krajewska, Iwona Pasternak, Jan Szmidt, and Wlodek Strupinski, “Step-edge-induced resistance anisotropy in quasi-free-standing bilayer chemical vapor deposition graphene on SiC,” Journal of Applied Physics 116, 123708 (2014).

Andriy E. Serebryannikov, Atilla Ozgur Cakmak, Evrim Colak, Humeyra Caglayan, Hamza Kurt, and Ekmel Ozbay, “Multiple slow waves and relevant transverse transmission and confinement in chirped photonic crystals,” Optics Express 22, 21806 (2014).

Aykut Ilgaz, Sibel Gökden, Remziye Tülek, Ali Teke, Süleyman Özçelik, and Ekmel Ozbay, “Temperature dependent hot electron transport in slightly lattice mismatched AlInN/AlN/GaN heterostructures,” Journal of Optoelectronics and Advanced Materials 16, 1008 (2014).

Sefer Bora Lisesivdin, Gokhan Atmaca, Engin Arslan, Semih Çakmakyapan, Özgür Kazar, Serkan Bütün, Jawad Ul-Hassan, Eric Janzén, and Ekmel Ozbay, “Extraction and scattering analyses of 2D and bulk carriers in epitaxial graphene-on-SiC structure,” Physica E 63, 87 (2014).

Semih Cakmakyapan, Neval A. Cinel, Atilla Ozgur Cakmak, and Ekmel Ozbay, “Validation of electromagnetic field enhancement in near-infrared through Sierpinski fractal nanoantennas,” Optics Express 22, 19504 (2014).

Hüseyin Çakmak, Engin Arslan, Mariusz Rudzinski, Pakize Demirel, Husnu Emrah Unalan, W. Strupinski, Raşit Turan, Mustafa Öztürk, and Ekmel Ozbay, “Indium rich InGaN solar cells grown by MOCVD,” Journal of Material Science: Material Electronics 25, 3652 (2014).

Deniz Caliskan, Bayram Butun, Sadan Ozcan, and Ekmel Ozbay, “Spectral response modification of TiO2 MSM photodetector with an LSPR filter,” Optics Express 22, 14096 (2014).

Semih Cakmakyapan, Levent Sahin, Francesco Pierini, and Ekmel Ozbay, “Resonance tuning and broadening of bowtie nanoantennas on graphene” Photonics and Nanostructures – Fundamentals and Applications 12, 199 (2014).

Husnu Koc, Hacı Ozisik, Engin Deligoz, Amirullah M. Mamedov and Ekmel Ozbay, “Mechanical, electronic, and optical properties of Bi2S3 and Bi2Se3 compounds: first principle investigations,” Journal of Molecular Modeling 20, 2180 (2014).

Davide Ramaccia, Luca Di Palma, Damla Ates, Ekmel Ozbay, Alessandro Toscano, “Analytical Model of Connected Bi-Omega: Robust Particle for the Selective Power Transmission Through Sub-Wavelength Apertures” IEEE Transactions on Antennas and Propagation 62, 2093 (2014).

Tarik Asar, Suleyman Ozcelik, and Ekmel Ozbay, “Structural and electrical characterizations of InxGa1-xAs/InP structures for infrared photodetector applications,” Journal of Applied Physics 115, 104502 (2014).

S. Simsek, H. Koc, V. A. Trepakov, Amirullah M. Mamedov, and Ekmel Ozbay, “Electron Spectroscopy and the Electronic Structure of KNbO3: First Principle Calculations,” Ferroelectrics, 461, 99 (2014).

Anwar, Mehdi, Melinger, Joseph S., Ozbay, Ekmel, Tonouchi, Masayoshi “Special Section Guest Editorial: Terahertz Physics and Applications” Optical Engineering vol. 53, Issue: 3, Article Number: 031201(1-3)

Engin Arslan, Semih Cakmakyapan, Özgür Kazar, Serkan Bütün, Sefer Bora Lisesivdin, Neval A. Cinel, Gülay Ertas, Sükrü Ardal ,Engin Tiras, Jawad-ul-Hassan, E. Janzen, and Ekmel Ozbay, “SiC Substrate Effects on Electron Transport in the Epitaxial Graphene Layer,” Electronic Materials Letters 10, 387 (2014).

Zhaofeng Li, Mehmet Mutlu, and Ekmel Ozbay, “Highly asymmetric transmission of linearly polarized waves realized with a multilayered structure including chiral metamaterials,” Journal of Physics:D Applied Physics, 47, 075107 (2014).

Andriy E. Serebryannikov, Shunji Nojima, and Ekmel Ozbay, “Asymmetric transmission of terahertz waves using polar dielectrics,” Optics Express 22, 3075 (2014).

Rasit Tulek , Engin Arslan , A. Bayraklı, S. Turhan, S. Gökden, Ö. Duygulu, A.A. Kaya, Tezer Fırat, Ali Teke, and Ekmel Ozbay, “The effect of GaN thickness inserted between two AlN layers on the transport properties of a lattice matched AlInN/AlN/GaN/AlN/GaN double channel heterostructure,” Thin Solid Films 551, 146 (2014).

I. H. Giden, D. Yilmaz, M. Turduev, H. Kurt, E. Çolak and E. Ozbay “Theoretical and experimental investigations of asymmetric light transport in graded index photonic crystal waveguides” Applied Physics Letters vol: 104, Issue: 3, Article Number: 031116 (1-6)

Tamara Funda Gundogdu, Mutlu Gokkavas, and Ekmel Ozbay, “Improving the Efficiency Enhancement of Photonic Crystal Based InGaN Solar Cell by Using a GaN Cap Layer,” Advances in Materials Science and Engineering 2014, 605204 (2014).

Engin Arslan, Pakize Demirel, Huseyin Çakmak, Mustafa K. Öztürk,, and Ekmel Ozbay, “Mosaic Structure Characterization of the AlInN Layer Grown on Sapphire Substrate,” Advances in Materials Science and Engineering 2014, 980639 (2014).

Engin Arslan, Sevil Turan, Sibel Gökden, Ali Teke, Ekmel Ozbay, “Current-Transport Mechanisms in the AlInN/AlN/GaN single-channel and AlInN/AlN/GaN/AlN/GaN double-channel heterostructures,” Thin Solid Films, 548, 411 (2013).

Engin Arslan, Mustafa K. Ozturk, Huseyin Cakmak, Pakize Demirel, Suleyman Ozcelik, and Ekmel Ozbay, “Evolution of the mosaic structure in InGaN layer grown on a thick GaN template and sapphire substrate,” Journal of Materials Science: Materials in Electronics, 24, 4471 (2013).

Semih Cakmakyapan, Levent Sahin, Francesco Pierini, Wlodek Strupinski, and Ekmel Ozbay, “Resonance broadening and tuning of split ring resonators by top-gated epitaxial graphene on SiC substrate,” Applied Physics Letters 103, 181116 (2013).

Emre Mulazimoglu, Sahin Coskun, Mete Gunoven, Bayram Butun, Ekmel Ozbay, Rasit Turan and Husnu Emrah Unalan, “Silicon nanowire network metal-semiconductor-metal photodetectors,” Applied Physics Letters 103, 083114 (2013).

Zhaofeng Li, Mutlu Gokkavas, and Ekmel Ozbay, “Manipulation of Asymmetric Transmission in Planar Chiral Nanostructures by Anisotropic Loss,” Advanced Optical Materials 1, 482-488 (2013).

S. Çörekçi, M. K. Öztürk, Hongbo Yu, M. Çakmak, S. Özçelik, and Ekmel Ozbay, “Effects of high-temperature AIN buffer on the microstructure of AlGaN/GaN HEMTs,” Semiconductors 47, 820 (2013).

Mehmet Mutlu, Semih Cakmakyapan, Andriy E. Serebryannikov, and Ekmel Ozbay, “One-way reciprocal spoof surface plasmons and relevant reversible diodelike beaming,” Physical Review B 87, 205123 (2013).

Andriy E. Serebryannikov, and Ekmel Ozbay, “One-way Rayleigh-Wood anomalies and tunable narrowband transmission in photonic crystal gratings with broken structural symmetry,” Physical Review A 87, 053804 (2013).

Neval A. Cinel, Semih Cakmakyapan, Gulay Ertas, and Ekmel Ozbay, “Concentric Ring Structures as Efficient SERS Substrates,” Journal of Selected Topics in Quantum Electronics 19, 4601605 (2013).

Evrim Colak, , Andriy E. Serebryannikov, Atilla Ozgur Cakmak, and Ekmel Ozbay, “Experimental study of broadband unidirectional splitting in photonic crystal gratings with broken structural symmetry”, Applied Physics Letters, volume 102, 151105 (2013).

Deniz Caliskan, Bayram Butun, Sadan Ozcan, and Ekmel Ozbay, “Metal-semiconductor-metal photodetector on as-deposited TiO2 thin films on sapphire substrate,” Journal of Vacuum Science and Technology B 31, 020606 (2013).

Neval A. Cinel , Serkan Bütün , Gülay Ertas¸ Ekmel Ozbay, “Fairy Chimney Shaped Tandem Metamaterials as Double Resonance SERS Substrates,” Small 9, 531 (2013).

Damla Ates, Filiberto Bilotti, Alessandro Toscano, and Ekmel Ozbay, “Experimental demonstration of the enhanced transmission through circular and rectangular sub-wavelength apertures using omega-like split-ring resonators,” Photonics and Nanostructures: Fundamental Applications 11, 55 (2013).

Zhaofeng Li, Mehmet Mutlu, and Ekmel Ozbay, “Chiral metamaterials: from optical activity and negative refractive index to asymmetric transmission,” Journal of Optics 15, 023001 (2013).

A.F. Kuloglu, B. Sarikavak-Lisesivdin, S.B. Lisesivdin, and Ekmel Ozbay, “First-principles calculations of Pd-terminated symmetrical armchair graphene nanoribbons,” Computational Materials Science 68, 18 (2013).

Mustafa K.Ozturk, EnginArslan, _Ilknur Kars, Suleyman Ozcelik, and EkmelOzbay, “Strain analysis of the GaN epitaxial layers grown on nitridated Si(111) substrate by metal organic chemical vapor deposition,” Materials Science in Semiconductor Processing 16, 83 (2013).

Engin Tiras, S. Ardali, T. Tiras, Engin Arslan, Semih Cakmakyapan, Ozgur Kazar, Jawad Hassan, Erik Janzen, and Ekmel Ozbay, “Effective mass of electron in monolayer graphene: Electron-phonon interaction,” Journal of Applied Physics 113, 043708 (2013).

Sevket Simsek, Amirullah M. Mamedov, and Ekmel Ozbay, “Two-Dimensional Ferroelectric Photonic Crystals: Optics and Band Structure,” Ferroelectrics, 448, 23 (2013).

H. Koc, Amirullah M. Mamedov, and Ekmel Ozbay, “Optical Properties and Electronic Band Structure of Topological Insulators (on A(2)(5)B(3)(6) Compound Based),” Ferroelectrics, 448, 29 (2013).

Zafer Ozer, Amirullah M. Mamedov, and Ekmel Ozbay, “Modeling and Simulation of the Ferroelectric Based Micro Gyroscope: FEM Analysis,” Ferroelectrics, 446, 46 (2013).

Kamil Boratay Alici, Mehmet Deniz Calıskan, Filiberto Bilotti, Alessandro Toscano, Lucio Vegni, and Ekmel Ozbay, “Experimental verification of metamaterial loaded small patch antennas,” COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 32, 1834 (2013).

B. Sarikavak-Lisesivdin, S. B. Lisesivdin, and E. Ozbay "The Effect of InxGa1-xN Back-barriers on the Dislocation Densities in Al0.31Ga0.69N/AlN/GaN/ InxGa1-xN/GaN Heterostructures (0.05 < x < 0.14)" Cur. Appl. Phys. 13, 224 (2013).

Mehmet Mutlu, Ahmet E. Akosman, Gokhan Kurt, Mutlu Gokkavas, and Ekmel Ozbay, “Experimental realization of a high-contrast grating based broadband quarter-wave plate,” Optics Express 20, 27966 (2012).

Andriy E. Serebryannikov, Evrim Colak, Atilla Ozgur Cakmak, and Ekmel Ozbay, “Dispersion irrelevant wideband asymmetric transmission in dielectric photonic crystal gratings,” Optics Letters 37, 4844 (2012).

Engin Aslan, Huseyin Cakmak, and Ekmel Ozbay, “Forward tunneling current in Pt/p-InGaN and Pt/n-InGaN Schottky barriers in a wide temperature range,” Microelectronic Engineering 100, 51 (2012).

Andriy E. Serebryannikov, Kamil Bora Alici, Thore Magath, Atilla Ozgur Cakmak, and Ekmel Ozbay, “Asymmetric Fabry-Perot-type transmission in photonic-crystal gratings with one-sided corrugations at a two-way coupling,” Physical Review A 86, 053835 (2012).

Semih Cakmakyapan, Andriy E. Serebryannikov, Humeyra Caglayan, and Ekmel Ozbay, “Spoof-plasmon relevant one-way collimation and multiplexing at beaming from a slit in metallic grating,” Optics Express 20, 26637 (2012).

Serkan Butun, Neval A. Cinel, and Ekmel Ozbay, “LSPR enhanced MSM UV photodetectors,” Nanotechnology 23, 444010 (2012).

Mehmet Kahraman, Semih Cakmakyapan, Ekmel Ozbay, and Mustafa Culha, “An array of surface-enhanced Raman scattering substrates based on plasmonic lenses,” Annalen Der Physik 524, 663 (2012).

Ozgur Kelekci, Pinar T. Tasli, S. S. Cetin, Mehmet Kasap, Suleyman Ozcelik, and Ekmel Ozbay, “Investigation of AlInN HEMT structures with different AlGaN buffer layers grown on sapphire substrates by MOCVD,” Current Applied Physics 12, 1600 (2012).

Kafesaki, Maria, Ozbay, Ekmel “Preface” Physica B-Condensed Matter vol 407, Issue: 20, pages: 4009-4010, (2012)

Ahmet E. Akosman, Mehmet Mutlu, Hamza Kurt, and Ekmel Ozbay, “Dual-frequency division de-multiplexer based on cascaded photonic crystal waveguides,” Physica B 407, 4043 (2012).

Atilla Ozgur Cakmak, Evrim Colak, and Ekmel Ozbay, “Simultaneously opening transmission channels with negative and positive phase velocities for the stacked subwavelength apertures in fishnet metamaterials with hybrid unit lattices,” Journal of Nanophotonics 6, 061608 (2012).

Yusuf Ozturk, Asım Egemen Yılmaz, Evrim Colak, and Ekmel Ozbay, “Characterization, slab-pair modeling and phase analysis of circular fishnet metamaterials,” Photonics and Nanostructures: Fundamental Applications 10, 624 (2012).

Zeev Zalevsky, Ekmel Ozbay, Ibrahim Abdulhalim “Special Section Guest Editorial: Selected Papers from the 4th Mediterranean Conference on Nanophotonics” Journal Of Nanophotonics vol 6, Article Number: 061699, (2012)

Engin Tiras, Sukru Ardali, Engin Aslan, and Ekmel Ozbay, “Energy Relaxation Rates in AlInN/AlN/GaN Heterostructures,” Journal of Electronic Materials 41, 2350 (2012).

Hamza Kurt, D. Yilmaz, Ahmet Emin Akosman, and Ekmel Ozbay, “Asymmetric light propagation in chirped photonic crystal waveguides,” Optics Express 20, 20635 (2012).

Adil Burak Turhan, Demet Ataman, Yasin Sen, Mehmet Mutlu, and Ekmel Ozbay, “Nanofabrication and plasma polymerization assisted surface modification of a transducer based on localized surface plasmon resonance of gold nanostructure arrays for biosensor applications,” Journal of Nanophotonics 6, 061602 (2012).

Tamara Funda Gundogdu, Mutlu Gokkavas, and Ekmel Ozbay, “Absorption enhancement in InGaN based photonic crystal-implemented solar cells,” Journal of Nanophotonics 6, 061603 (2012)

Damla Ates, Atilla Ozgur Cakmak, and Ekmel Ozbay, "Near-field light localization using subwavelength apertures incorporated with metamaterials," Optics Communications 285, 3390 (2012).

Andriy E. Serebryannikov, A. Ozgur Cakmak, and Ekmel Ozbay, " Multichannel optical diode with unidirectional diffraction relevant total transmission," Optics Express 20, 14980 (2012).

ZhaoFeng Li, Koray Aydin, and Ekmel Ozbay, “Retrieval of effective parameters for bianisotropic metamaterials with omega shaped metallic inclusions,” Photonics and Nanostructures 10, 329 (2012).

Mehmet Mutlu, Ahmet E. Akosman, Andriy E. Serebryannikov, and Ekmel Ozbay, “Broadband circular polarizer based on high-contrast gratings,” Optics Letters 37, 2094 (2012).

Aydın Bayraklı, Engin Arslan, Tezer Fırat, Sadan Ozcan, Ozgur Kazar, Huseyin Cakmak, and Ekmel Ozbay, “Magnetotransport study on AlInN/ (GaN)/AlN/GaN heterostructures,” Physica Status Solidi A 209, 1119 (2012).

Mutlu Gokkavas, Serkan Butun, Piotr Caban, Wlodek Strupinski, and Ekmel Ozbay, “Integrated AlGaN quadruple-band ultraviolet photodetectors,” Semiconductor Science and Technology 27, 065004 (2012).

Engin Tiras, Ozlem Celik, Selman Mutlu, Sukru Ardali, Sefer Bora Lisesivdin, and Ekmel Ozbay, “Temperature dependent energy relaxation time in AlGaN/AlN/GaN heterostructures,” Superlattices and Microstructures 51, 733 (2012).

Mehmet Mutlu, Ahmet E. Akosman, Andriy E. Serebryannikov and Ekmel Ozbay, “Diode-like asymmetric transmission of linearly polarized waves using magnetoelectric coupling controlled by electromagnetic wave tunneling,” Physical Review Letters 108, 213905 (2012).

Ozlem Celik, Engin Tiras, Sukru Ardali, Sefer B. Lisesivdin, and Ekmel Ozbay, "Determination of the LO phonon energy by using electronic and optical methods in AlGaN/GaN," Central European Journal of Physics 10, 485 (2012).

Zhaofeng Li, Humeyra Caglayan, Kamil Boratay Alici, Maria Kafesaki, Costas M. Soukoulis, and Ekmel Ozbay, "Composite chiral metamaterials with negative refractive index and high values of the figure of merit," Optics Express 20, 6146 (2012).

Ozgur Kelekci, Pinar T. Tasli, Hongbo Yu, Mehmet Kasap, Suleyman Ozcelik, and Ekmel Ozbay, “Electron transport properties in Al0.25Ga0.75N/AlN/GaN heterostructures with different InGaN back barrier layers and GaN channel thicknesses grown by MOCVD,” Physica Status Solidi A 209, 434 (2012).

S. Çörekçi, M.K. Öztürk, Mehmet Çakmak, Süleyman Ozçelik, and Ekmel Ozbay, “The influence of thickness and ammonia flow rate on the properties of AlN layers,” Materials Science in Semiconductor Processing 15, 32 (2012).

Neval Cinel, Serkan Butun, and Ekmel Ozbay, "Electron beam lithography designed silver nanodisks used as label free nano-biosensors based on localized surface plasmon resonance," Optics Express 20, 2587 (2012).

Serkan Butun, Neval Cinel, and Ekmel Ozbay, "Nanoantenna coupled UV subwavelength photodetectors based on GaN," Optics Express 20, 2649 (2012).

Mehmet Mutlu, and Ekmel Ozbay, “A transparent 90° polarization rotator by combining chirality and electromagnetic wave tunneling,” Applied Physics Letters 98, 051909 (2012).

B. Sarikavak-Lisesivdin, Sefer Bora Lisesivdin, and Ekmel Ozbay, “Ab initio study of Ru-terminated and Ru-doped armchair graphene nanoribbons,” Molecular Physics 110, 2295 (2012).

S. Demirezen, S. Altındal, Suleyman Ozcelik, and Ekmel Ozbay, “On the profile of frequency and voltage dependent interface states and series resistance in (Ni/Au)/Al0.22Ga0.78N/AlN/GaN heterostructures by using current–voltage (I–V) and admittance spectroscopy methods,” Microelectronics Reliability, 51, 2153 (2011).

Ahmet E. Akosman, Mehmet Mutlu, Hamza Kurt, and Ekmel Ozbay, "Compact wavelength de-multiplexer design using slow light regime of photonic crystal waveguides," Optics Express 19, 24129 (2011).

A. Ilgaz, S. Gokden, R. Tulek, A. Teke, Suleyman Ozcelik, and Ekmel Ozbay, “Energy relaxations of hot electrons in AlGaN/AlN/GaN heterostructures grown by MOCVD on sapphire and 6H-SiC substrates,” European Physical Journal Applied Physics, volume 55, 30102 (2011).

Hongbo Yu, Mustafa Ozturk, Pakize Demirel, Huseyin Cakmak, Basar Bolukbas, Deniz Caliskan, and Ekmel Ozbay, "Metalorganic chemical vapor deposition growth and thermal stability of the AlInN/GaN high electron mobility transistor structure," Semiconsuctor Science and Technology 26, 085010 (2011).

Kamil Boratay Alici, Adil Burak Turhan, Costas M. Soukoulis, and Ekmel Ozbay, "Optically thin composite resonant absorber at the near-infrared band: a polarization independent and spectrally broadband configuration," Optics Express 19, 14260 (2011).

Mehmet Mutlu, Ahmet E. Akosman, Andriy E. Serebryannikov, and Ekmel Ozbay, "Asymmetric transmission of linearly polarized waves and polarization angle dependent wave rotation using a chiral metamaterial," Optics Express 19, 14290 (2011).

Levent Sahin, Koray Aydin, Gonul Turhan Sayan and Ekmel Ozbay, “Enhanced transmission of electromagnetic waves through split-ring resonator-shaped apertures,” Journal of Nanophotonics 5, 051812 (2011).

Zeev Zalevsky, Ekmel Ozbay, Ibrahim Abdulhalim “Special Section Guest Editorial: Selected Papers from the 3rd Mediterranean Conference on Nanophotonics” Journal Of Nanophotonics vol 5, Article Number: 051899 (2011)

L. Scorrano, F. Bilotti, E. Ozbay, and L. Vegni, "FSS-based approach for the power transmission enhancement through electrically small apertures," Applied Physics A: Materials Science and Processing, 103, 927 (2011).

Mehmet Mutlu, Ahmet Emin Akosman, Andriy E. Serebryannikov, and Ekmel Ozbay, “Asymmetric chiral metamaterial circular polarizer based on four U-shaped split ring resonators,” Optics Letters 36, 1653 (2011).

Zhaofeng Li, Kamil Boratay Alici, Evrim Colak, and Ekmel Ozbay, “Complementary chiral metamaterials with giant optical activity and negative refractive index,” Applied Physics Letters 98, 161907 (2011).

Ozgur Kelekci, Sefer Bora Lisesivdin, Suleyman Ozcelik, and Ekmel Ozbay, “Numerical optimization of In-mole fractions and layer thicknesses in AlGaN/AlN/GaN high electron mobility transistors with InGaN back barriers,” Physica B, volume 406, 1513 (2011).

Addae, Sarah A., Pinard, Melissa A., Caglayan, Humeyra, Cakmakyapan, Semih, Caliskan, Deniz, Ozbay, Ekmel, Aslan, Kadir “Rapid and sensitive colorimetric ELISA using silver nanoparticles, microwaves and split ring resonator structures” Abstracts Of Papers Of The American Chemical Society vol 241,Meeting Abstract: 182-COLL

Hikmet Sezen, Ekmel Ozbay, Ozgur Aktas, and Sefik Suzer, “Transient surface photovoltage in n- and p-GaN as probed by x-ray photoelectron spectroscopy,” Applied Physics Letters 98, 111901 (2011).

Z. Tekeli, M. Gokcen, S. Altındal, , Suleyman Ozcelik, and Ekmel Ozbay, “On the profile of frequency dependent dielectric properties of (Ni/Au)/GaN/Al0.3Ga0.7N heterostructures,” Microelectronics Reliability, 51, 581 (2011).

S. Çörekçi, M. K. Öztürk, A. Bengi, M. Çakmak, S. Ozcelik and E. Ozbay, “Characterization of an AlN buffer layer and a thick-GaN layer grown on sapphire substrate by MOCVD,” Journal of Materials Science 46, 1606 (2011).

Engin Arslan, Serkan Bütün, Yasemin Şafak, Hüseyin Çakmak, Hongbo Yu, and Ekmel Özbay, “Current transport mechanisms and trap state investigations in (Ni/Au)-AlN/GaN Schottky barrier diodes,” Microelectronics Reliability, 51, 576 (2011).

Kamil Boratay Alici, Andriy E. Serebryannikov, and Ekmel Ozbay “Photonic magnetic metamaterial basics,” Photonics and Nanostructures 7, 15 (2011).

Filiberto Bilotti, Alessandro Toscano, Kamil Boratay Alici, Ekmel Ozbay, and Lucio Vegni “Design of Miniaturized Narrowband Absorbers Based on Resonant-Magnetic Inclusions,” IEEE Transactions on Electromagnetic Compatibility 53, 63 (2011).

Engin Arslan, Serkan Bütün, Yasemin Şafak, Habibe Uslu, İlke Taşçıoğlu, Şemsettin Altındal, and Ekmel Özbay, “Electrical characterization of MS and MIS structures on AlGaN/AlN/GaN heterostructures,” Microelectronics Reliability 51, 370 (2011).

S. Cakmakyapan, H. Caglayan, A. E. Serebryannikov, and E. Ozbay, "Experimental validation of strong directional selectivity in nonsymmetric metallic gratings with a subwavelength slit," Applied Physics Letters 98, 051103 (2011).

Nian-Hai Shen, Maria Massaouti, Mutlu Gokkavas, Jean-Michel Manceau, Ekmel Ozbay, Maria Kafesaki, Thomas Koschny, Stelios Tzortzakis, and Costas M. Soukoulis, “Optically Implemented Broadband Blueshift Switch in the Terahertz Regime,” Physical Review Letters 136, 037403 (2011).

P. Caban, W. Strupinski, J. Szmidt, M. Wojcik, J. Gaca, O. Kelekci, D. Caliskan, and E Ozbay, “Effect of growth pressure on coalescence thickness and crystal quality of GaN deposited on 4H–SiC,” Journal of Crystal Growth 315, 168 (2011).

A. Yildiz, P. Tasli, B. Sarikavak, S. B. Lisesivdin, M. K. Ozturk, M. Kasap, S. Ozcelik and E. Ozbay, “Grain boundary related electrical transport in Al-rich AlGaN layers grown by metal-organic chemical vapor deposition,” Semiconductors 45, 33 (2011).

Yu, H, Ozturk, M., Demirel, P., Cakmak, H., Buyuklimanli, T., Ou, W., Ozbay, E. “Experimental study of two-step growth of thin AlN film on 4H-SiC substrate by Metalorganic Chemical Vapor Deposition” Journal Of Optoelectronics And Advanced Materials vol 12, Issue: 12, pages: 2406-2412 (2010)

Evrim Colak, Atilla Ozgur Cakmak, Andriy E. Serebryannikov, and Ekmel Ozbay, “Spatial filtering using dielectric photonic crystals at beam-type excitation," J. Appl. Phys. 108, 113106 (2010).

Engin Arslan, Serkan Bütün, Yasemin Safak and Ekmel Ozbay "Investigation of Trap States in AlInN/AlN/GaN Heterostructures by Frequency-Dependent Admittance Analysis," Journal of Electronic Materials 39, 2681 (2010).

Hongbo Yu , Mustafa Ozturk , Pakize Demirel, Huseyin Cakmak, and Ekmel Ozbay, “MOCVD growth and optical properties of non-polar a-plane GaN on r-plane sapphire substrate,” Journal of Crystal Growth 312, 3438 (2010).

Hongbo Yu, Sefer B. Lisesivdin, Basar Ozturk, Ozgur Kelekci, Mustafa Kemal Ozturk, Suleyman Ozcelik, Deniz Caliskan, Mustafa Ozturk, Huseyin Cakmak, Pakize Demirel, and Ekmel Ozbay, “Improvement of breakdown characteristics in AlGaN/GaN/ AlGaN HEMT based on a grading AlGaN buffer layer,” Physica Status Solidi A 207, 2593 (2010).

Andriy E. Serebryannikov, P.V. Usik, and Ekmel Ozbay, “Defect-mode-like transmission and localization of light in photonic crystals without defects,” Physical Review B 82, 165131 (2010).

Kamil Boratay Alici, Filiberto Bilotti, Lucio Vegni and Ekmel Ozbay “Experimental verification of metamaterial based subwavelength microwave absorbers” Journal Of Applied Physics vol 108, Issue: 8, Article Number: 083113 (1-6) (2010)

Atilla Ozgur Cakmak, Evrim Colak, Andriy E. Serebryannikov, and Ekmel Ozbay, "Unidirectional transmission in photonic-crystal gratings at beam-type illumination," Optics Express 18, 22283 (2010).

Kamil Boratay Alici, and Ekmel Ozbay, “Metamaterial inspired enhanced far-field transmission through a subwavelength nano-hole,” Physica Status Solidi RRL 4, 286 (2010).

I. Tascioglu, H. Uslu, Y. Safak, and E. Ozbay "Frequency dependent electrical characteristics of (Ni/Au)/AlGaN/AlN/GaN heterostructures" Optoelectronics and Advanced Materials: Rapid Communications 4, 859 (2010).

Humeyra Caglayan, Semih Cakmakyapan, Sarah A. Addae, Melissa A. Pinard, Deniz Caliskan, Kadir Aslan, and Ekmel Ozbay, “Ultrafast and and sensitive bioassay using SRR structures and microwave heating” Applied Physics Letters 97, 093701 (2010).

Zhaofeng Li, Rongkuo Zhao, Thomas Koschny, Maria Kafesaki, Kamil Boratay Alici, Evrim Colak, Humeyra Caglayan, Ekmel Ozbay, and C. M. Soukoulis, "Chiral metamaterials with negative refractive index based on four “U” split ring resonators," Applied Physics Letters 97, 081901 (2010).

Semih Cakmakyapan, Andriy E. Serebryannikov, Humeyra Caglayan, and Ekmel Ozbay, "One-way transmission through the subwavelength slit in nonsymmetric metallic gratings," Optics Letters 35, 2597-2599 (2010)

S. B. Lisesivdin, P. Tasli, M. Kasap, M. Ozturk, E. Arslan, S. Ozcelik, and E. Ozbay, "Double subband occupation of the two-dimensional electron gas in InxAl1-xN/AlN/GaN/AlN Heterostructures with Low Indium Barrier (0.064 < x < 0.139)" Thin Solid Films 518, 5572 (2010).

Humeyra Caglayan and Ekmel Ozbay, “Observation of cavity structures in composite metamaterials,” Journal of Nanophotonics 4, 041790 (2010).

Zalevsky, Zeev, Ozbay, Ekmel, Abdulhalim, Ibrahim “Selected Papers from the 2nd Mediterranean Conference on Nanophotonics” Journal Of Nanophotonics vol 4, pages: 1-1 (2010)

C. Sabah, A. O. Cakmak, S. Uckun, and Ekmel Ozbay, “Transmission measurements of a new metamaterial sample with negative refraction index”, Physica B, volume 405, 2955 (2010).

Andriy E. Serebryannikov, and Ekmel Ozbay “Non-ideal multifrequency cloaking using strongly dispersive materials,” Physica B, volume 405, 2959 (2010).

S. B. Lisesivdin, A. Yildiz, N. Balkan, M. Kasap, S. Ozcelik, E. Ozbay "Scattering Analysis of Two-dimensional Electrons in AlGaN/GaN with Bulk Related Parameters Extracted by Simple Parallel Conduction Extraction Method" J. Appl. Phys. 108, 013712 (2010).

Zhaofeng Li, Koray Aydin, and Ekmel Ozbay, “Transmission spectra and the effective parameters for planar metamaterials with omega shaped metallic inclusions”, Optics Communications, volume 283, 2547 (2010).

İ. Taşçioğlu, H. Uslu, Y. Şafak, E. Özbay “Frequency dependent electrical characteristics of (Ni/Au)/AlGaN/AlN/GaN heterostructures” Optoelectronics And Advanced Materials-Rapid Communications vol 4, Issue: 6, pages: 859-862 (2010)

ltindal, Semsettin, Safak, Yasemin, Tascioglu, Ilke, Ozbay, Ekmel “The effect of insulator layer thickness on the main electrical parameters in (Ni/Au)/AlxGa1-xN/AlN/GaN heterostructures” Surface And Interface Analysis vol 42, Issue: 6-7, pages: 803-806, Special Issue: SI (2010)

ascioglu, I., Aydemir, U., Safak, Y., Ozbay, E. “Temperature-dependent profile of the surface states and series resistance in (Ni/Au)/AlGaN/AlN/GaN heterostructures” Surface And Interface Analysis vol 42, Issue: 6-7, pages: 812-815, Special Issue: SI (2010)

A. Yildiz, S.B. Lisesivdin, P. Taslid, E. Ozbay, M. Kasap “Determination of the critical indium composition corresponding to the metal–insulator transition in InxGa1−xN (0.06 ⩽ x ⩽ 0.135) layers” Current Applied Physics vol 10, Issue: 3, pages: 838-841 (2010)

Engin Arslan, Yasemin Şafak, Şemsettin Altındal, Özgür Kelekçi, and Ekmel Ozbay, “Temperature dependent negative capacitance behavior in (Ni/Au)/AlGaN/AlN/GaN heterostructures,” Journal of non-crystalline Solids, volume 356, 1006 (2010).

Ekmel Ozbay, “Photonic Metamaterials: Science Meets Magic,” IEEE Photonics Journal 2, 249 (2010).

A. Bengi, S.B.Lisesivdin, M.Kasap, T.Mammadov, S.Ozcelik, E.Ozbay “Analysis of defect related optical transitions in biased AlGaN/GaN heterostructures” Materials Science In Semiconductor Processing vol 13, Issue: 2, pages: 105-108 (2010)

S. Gokden, R. Tulek, A. Teke, J. H. Leach, Q. Fan, J. Xie, U. Ozgur, H. Morkoc, S.B. Lisesivdin and Ekmel Ozbay “Mobility limiting scattering mechanisms in nitride-based two-dimensional heterostructures with the InGaN channel,” Semiconductor Science and Technology, volume 25, 045024 (2010).

Zhaofeng Li, Humeyra Caglayan, Evrim Colak, Jiangfeng Zhou, Costas M. Soukoulis, and Ekmel Ozbay, “Coupling effect between two adjacent chiral structure layers” Optics Express, Volume 18, 5375 (2010).

A. Yildiz, S. B. Lisesivdin, M. Kasap, S. Ozcelik, E. Ozbay and N. Balkan "Investigation of low temperature electrical conduction mechanisms in highly resistive GaN bulk layers extracted with SPCEM" Applied Physics A, Volume 98, 557 (2010).

T. Funda Gundogdu, Kaan Guven, Mutlu Gokkavas, Costas M. Soukoulis, and Ekmel Ozbay, “A Planar Metamaterial With Dual-Band Double-Negative Response at EHF ”, IEEE Journal of Selected Topics in Quantum Electronics, volume 166, 376 (2010).

Kamil Boratay Alici, and Ekmel Ozbay, “Theoretical Study and Experimental Realization of a Low-Loss Metamaterial Operating at the Millimeter-Wave Regime: Demonstrations of Flat- and Prism-Shaped Samples”, IEEE Journal of Selected Topics in Quantum Electronics, volume 166, 386 (2010).

Damla Ates, Atilla Ozgur Cakmak, Evrim Colak, Rongkuo Zhao, C. M. Soukoulis, and Ekmel Ozbay, “Transmission enhancement through deep subwavelength apertures using connected split ring resonators” Optics Express, Volume 18, 3952 (2010).

P. Tasli, S. B. Lisesivdin, A. Yildiz, M. Kasap, E. Arslan, S. Özcelik and E. Ozbay “Well parameters of two-dimensional electron gas in Al0.88In0.12N/AlN/GaN/AlN heterostructures grown by MOCVD” Crystal Research And Technology vol 45, Issue: 2, pages: 133-139 (2010)

M. K. Öztürk, Yu Hongbo, B. Sarıkavak, S. Korçak, S. Özçelik and Ekmel Ozbay, "Structural analysis of an InGaN/GaN based light emitting diode by X-ray diffraction," Journal of Materials Science-Materials in Electronics 21, 185-191 (2010).

Elena Saenz, Kaan Guven, Ekmel Ozbay, Inigo Ederra, and Ramon Gonzalo, “Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications,” International Journal of Antennas and Propagation, Applied Physics 2010, 843624 (2010).

K. B. Alici, A. E. Serebryannikov, and E. Ozbay, "Radiation properties and coupling analysis of a metamaterial based, dual polarization, dual band, multiple split ring resonator antenna," J. of Electromagn. Waves and Appl. volume 24, 1183-1193 (2010).

P. Tasli, A. Yildiz, M. Kasap, E. Ozbay, S.B. Lisesivdin and S. Ozcelik, “Contributions of impurity band and electron–electron interactions to magnetoconductance in AlGaN”, Philosophical Magazine, volume 90, 3591 (2010).

S. Demirezen, S. Altındal, S. Ozcelik, and E. Ozbay, “On the interface states and series resistance profiles of (Ni/Au)-AlGaN/AlN/GaN heterostructures before and after 60Co (gamma-ray) irradiation more options,” Radiation Effects & Defects in Solids: Incorporating Plasma Science & Plasma Technology 12, 929 (2010).

S. Corekci, Z. Tekeli , M. Cakmak , S. Ozcelik, Y. Dinc, O. Zeybek, and Ekmel Ozbay, “Effects of thermal annealing on the morphology of the AlGaN films” Materials Science in Semiconductor Processing, Volume 12, 238 (2009).

P. V. Usik, Andriy E. Serebryannikov, and Ekmel Ozbay “Spatial and spatial-frequency filtering using one-dimensional graded-index lattices with defects” Optics Communications volume 282, 4490 (2009).

Zalevsky, Zeev, Ozbay, Ekmel “Special Issue Medi Nano Preface” Photonics And Nanostructures-Fundamentals And Applications vol 7, Issue: 4, pages: 169-169 (2009)

Engin Arslan, Ozgur Duygulu, Ali Arslan Kaya, Ali Teke, Süleyman Özçelik and Ekmel Ozbay, “The electrical, optical, and structural properties of GaN epitaxial layers grown on Si(111) substrate with SiNx interlayers”, Superlattices and Microstructures, Volume 46, 846 (2009).

Filiberto Bilotti, Luca Scorrano, Ekmel Ozbay and Lucio Vegni, “Enhanced transmission through a sub-wavelength aperture: resonant approaches employing metamaterials” Journal of Optics A: Pure and Applied Optics volume 11, 114029 (2009).

Andriy E. Serebryannikov, and Ekmel Ozbay “Multifrequency invisibility and masking of cylindrical dielectric objects using double-positive and double-negative metamaterials” Journal of Optics A: Pure and Applied Optics volume 11, 114020 (2009).

Andriy E. Serebryannikov, P. V. Usik, and Ekmel Ozbay, “Non-ideal cloaking based on Fabry-Perot resonances in single-layer high-index dielectric shells” Optics Express, volume 17, 16869 (2009).

Kamil Boratay Alici, and Ekmel Ozbay, “Direct observation of negative refraction at the millimeter-wave regime by using a flat composite metamaterials” Journal of Optical Society of America, volume 26, 1688 (2009).

S. B. Lisesivdin, E. Ozbay "Effect of various pseudomorphic AlN layer insertions on the electron densities of two-dimensional electron gas in lattice-matched In0.18Al0.82N/GaN based heterostructures" Optoelectronics and Advanced Materials: Rapid Communications 3, 904 (2009).

Nian-Hai Shen, Stavroula Foteinopoulou, Maria Kafesaki, Thomas Koschny, Ekmel Ozbay, Eleftherios N. Economou, and Costas M. Soukoulis “Compact planar far-field superlens based on anisotropic left-handed metamaterials” Physical Review B volume 80, 115123 (2009).

Atilla Ozgur Cakmak, Koray Aydin, Evrim Colak, Zhaofeng Li, Filiberto Bilotti, Lucio Vegni, and Ekmel Ozbay, “Enhanced transmission through a subwavelength aperture using metamaterials”, Applied Physics Letters, volume 95, 052103 (2009).

Andriy E. Serebryannikov, and Ekmel Ozbay “Unidirectional transmission in non-symmetric gratings containing metallic layers” Optics Express, volume 17, 13335 (2009).

Kamil Boratay Alici, and Ekmel Ozbay “Oblique response of a split-ring-resonator-based left-handed metamaterial slab” Optics Letters, volume 34, 2294 (2009).

Engin Arslan, Şemsettin Altındal, Süleyman Özçelik and Ekmel Ozbay, “Tunneling current via dislocations in Schottky diodes on AlInN/AlN/GaN Heterostructures”, Semiconductor Science and Technology, Volume 24, 075003 (2009).

Ali Teke, S. Gokden, R. Tulek, J. H. Leach, Q. Fan, J. Xie, U. Ozgu, Hadis Morkoc, Sefer Bora Lisesivdin and Ekmel Ozbay “The effect of AlN interlayer thicknesses on scattering processes in lattice-matched AlInN/GaN two-dimensional electron gas heterostructures,” New Journal of Physics, volume 11, 063031 (2009).

Evrim Colak, Humeyra Caglayan, Atilla Ozgur Cakmak, Alessandro Della Villa, Filippo Capolino, and Ekmel Ozbay, “Frequency dependent steering with backward leaky waves via photonic crystal interface layer,” Optics Express volume 17, 9879 (2009).

Sefer Bora Lisesivdin, H. Altuntas, A. Yildiz, Mehmet Kasap, Ekmel Ozbay, Suleyman Ozcelik, "DX-center Energy Calculation with Quantitative Mobility Spectrum Analysis in n-AlGaAs/GaAs Structures with Low Al Content" Superlatt. Microstruct. 45, 604 (2009).

Atilla Ozgur Cakmak, Evrim Colak, Humeyra Caglayan, Hamza Kurt, and Ekmel Ozbay "High efficiency of graded index photonic crystal as an input coupler" Journal of Applied Physics, volume 105, 103708 (2009).

Andriy E. Serebryannikov, A. Y. Petrov, and Ekmel Ozbay, “Toward photonic crystal based spatial filters with wide angle ranges of total transmission”, Applied Physics Letters, volume 94, 181101 (2009).

Sefer Bora Lisesivdin, Naci Balkan, O. Makarovsky, A. Patanè, A. Yildiz, M. Deniz Caliskan, Mehmet Kasap, Suleymen Ozcelik, Ekmel Ozbay "Large Zero-Field Spin Splitting in AlGaN/AlN/GaN/AlN Heterostructures" Journal of Applied Physics, volume 105, 093701 (2009).

G. Atmaca, K. Elibol, Sefer Bora Lisesivdin, Mehmet Kasap, and Ekmel Ozbay "Numerical optimization of Al-mole fractions and layer thicknesses in normally-on AlGaN-GaN double-channel high electron mobility transistors (DCHEMTs)" Journal of Optoelectronics and Advanced Materials volume 11, 578 (2009).

Kamil Bora Alici, Filiberto Bilotti, Lucio Vegni, and Ekmel Ozbay, “Optimization and tunability of deep subwavelength resonators for metamaterial applications: complete enhanced transmission through a subwavelength aperture,” Optics Express volume 17, 5933 (2009).

Zhaofeng Li, Kamil Boratay Alici, Humeyra Caglayan and Ekmel Ozbay, “Generation of an Axially Asymmetric Bessel-Like Beam from a Metallic Subwavelength Aperture,” Physical Review Letters, volume 102, 143901 (2009).

Engin Arslan, Serkan Bütün and Ekmel Ozbay, ‘Leakage current by Frenkel–Poole emission in Ni/Au Schottky contacts on Al0.83In0.17N/AlN/GaN heterostructures’, Applied Physics Letters, volume 94, 142106 (2009).

Kamil Bora Alici and Ekmel Ozbay, “Low-temperature behavior of magnetic metamaterial elements,” New Journal of Physics volume 11, 043015 (2009).

Engin Arslan, Mustafa K. Ozturk, Suleyman Ozcelik, and Ekmel Ozbay, “The effect of SixNy interlayer on the quality of GaN epitaxial layers grown on Si(111) substrates by MOCVD,” Current Applied Physics volume 9, 472 (2009).

Sefer Bora Lisesivdin, Naci Balkan, and Ekmel Ozbay,” A simple parallel conduction extraction method (SPCEM) for MODFETs and undoped GaN-based HEMTs ,” Microelectronics Journal volume 40, 413 (2009).

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay, “Observation of off-axis directional beaming via subwavelength asymmetric metallic gratings,” Journal of Physics D volume 42, 045105 (2009).

Zhaofeng Li, Koray Aydin and Ekmel Ozbay, “Determination of the effective constitutive parameters of bianisotropic metamaterials from reflection and transmission coefficients,” Physical Review E vol. 79, 026610 (2009).

Engin Arslan, Semsettin Altındal, Süleyman Ozçelik, and Ekmel Ozbay ‘Dislocation-governed current-transport mechanism in (Ni/Au)–AlGaN/AlN/GaN heterostructures’ Journal of Applied Physics, volume 105, 023705 (2009).

Koray Aydin, A. Ozgur Cakmak, Levent Sahin, Zhaofeng Li, Filiberto Bilotti, Lucio Vegni, and Ekmel Ozbay, “Split-Ring-Resonator-Coupled Enhanced Transmission through a Single Subwavelength Aperture,” Physical Review Letters, volume 102, 013904 (2009).

Andriy E. Serebryannikov, and Ekmel Ozbay “Isolation and one-way effects in diffraction on dielectric gratings with plasmonic inserts” Optics Express, volume 17, 278 (2009).

Engin Arslan, Mustafa K. Ozturk, Özgür Duygulu, Ali Arslan Kaya, Suleyman Ozcelik, and Ekmel Ozbay, “The influence of nitridation time on the structural properties of GaN grown on Si (111) substrate,” Applied Physics A volume 94, 73 (2009).

Remziye Tülek, Aykut Ilgaz, Sibel Gökden, Ali Teke, Mustafa K. Öztürk, Mehmet Kasap, Süleyman Özçelik, Engin Arslan, and Ekmel Ozbay “Comparison of the transport properties of high quality AlGaN/AlN/GaN and AlInN/AlN/GaN two-dimensional electron gas heterostructures,” Journal of Applied Physics, volume 105, 013707 (2009).

Zeev Zalevsky, Ekmel Ozbay, Ibrahim Abdulhalim “Guest Editorial: Mediterranean Nanophotonics” Journal Of Nanophotonics vol 3, Special Issue: SI, Article Number: 031799 (2009)

Humeyra Caglayan, Irfan Bulu, Marko Loncar, and Ekmel Ozbay, “Experimental Observation of Subwavelength Localization Using Metamaterial Based Cavities,” Optics Letters volume 34, 88 (2009)

Alfredo A. Martinez-Morales, Nathaniel G. Portney, Yu Zhang, Giuseppe Destito, Gurer Budak, Ekmel Ozbay, Marianne Manchester, Cengiz S. Ozkan, and Mihrimah Ozkan “Synthesis and Characterization of Iron Oxide Derivatized Mutant Cowpea Mosaic Virus Hybrid Nanoparticles,” Advanced Materials, volume 20, 4816 (2008).

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay “Cavity formation in split ring resonators” Photonics and Nanostructures, volume 6, 200 (2008).

K. Guven, E. Saenz, R. Gonzalo, E. Ozbay and S. Tretyakov, “Electromagnetic cloaking with canonical spiral inclusions,” New Journal of Physics, Electromagnetics, volume 10, 115037 (2008).

Piotr Caban, Kinga Kosciewicz, Wlodek Strupinski, Marek Wojcik, Jaroslaw Gaca, Jan Szmidt, Mustafa Ozturk, Ekmel Ozbay, and Ekmel Ozbay, “The influence of substrate surface preparation on LP MOVPE GaN epitaxy on differently oriented 4H-SiC substrates” Journal of Crystal Growth, volume 310, 4876 (2008).

Humeyra Caglayan, and Ekmel Ozbay “Surface wave splitter based on metallic gratings with sub-wavelength aperture” Optics Express volume 16, 19091 (2008).

Z. Tekeli, S. Altındal, M. Çakmak, S. Özçelik, and E. Ozbay “The profile of temperature and voltage dependent series resistance and the interface states in (Ni/Au)/Al0.3Ga0.7N/AlN/GaN heterostructures,” Microelectronic Engineering, volume 85, 2316 (2008).

Hamza Kurt, Evrim Colak, Ozgur Cakmak, Humeyra Caglayan, and Ekmel Ozbay “The focusing effect of graded index photonic crystals” Applied Physics Letters, volume 93, 171108 (2008).

R. S. Penciu, K. Aydin, M. Kafesaki, Th. Koschny, E. Ozbay, E. N. Economou, and C. M. Soukoulis, “Multi-gap individual and coupled split-ring resonator structures” Optics Express volume 16, 18131 (2008).

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay “Off-axis beaming from subwavelength apertures” Journal of Applied Physics, volume 104, 073108 (2008).

Humeyra Caglayan, Irfan Bulu, Marko Loncar, and Ekmel Ozbay “Observation of coupled-cavity structures in metamaterials” Applied Physics Letters, volume 93, 121910 (2008).

S.B. Lisesivdin, S. Acar, M. Kasap, S Ozcelik, S. Gokden, and E. Ozbay “Growth parameter investigation of Al0.25Ga0.75N/GaN heterostructures with Hall effect measurements heterostructures,” Semiconductor Science and Technology, volume 23, 095008 (2008).

Engin Arslan, Mustafa K Ozturk, Ali Teke, Suleyman Ozcelik, and Ekmel Ozbay, “Buffer optimization for crack-free GaN epitaxial layers grown on Si(111) substrate by MOCVD,” Journal of Physics D vol. 41, 155317 (2008).

Ekmel Ozbay, Zhaofeng Li, and Koray Aydin, “Super-resolution imaging by one-dimensional, microwave left-handed metamaterials with an effective negative index,” Journal of Physics Condensed Matter vol. 20, 304216 (2008).

Humeyra Caglayan, Irfan Bulu, Marko Loncar, and Ekmel Ozbay “Experimental observation of cavity formation in composite metamaterials” Optics Express volume 16, 11132 (2008).

Kamil Boratay Alici, and Ekmel Ozbay, “Characterization and tilted response of a fishnet metamaterial operating at 100 GHz,” Journal of Physics D vol. 41, 135011 (2008).

Koray Aydin, Zhaofeng Li, Levent Sahin, and Ekmel Ozbay “Negative phase advance in polarization independent, multi-layer negative-index metamaterials“, Optics Express volume 16, 8835 (2008).

Elena Saenz, Kaan Guven, Ekmel Ozbay, Iñigo Ederra, and Ramon Gonzalo “Enhanced directed emission from metamaterial based radiation source,” Applied Physics Letters, volume 92, 204103 (2008).

Engin Arslan, Serkan Bütün, S. Bora Lisesivdin, Mehmet Kasap, Suleyman Ozcelik, and Ekmel Ozbay “The persistent photoconductivity effect in AlGaN/GaN heterostructures grown on sapphire and SiC substrates,” Journal of Applied Physics, volume 103, 103701 (2008).

Bayram Butun, Koray Aydin, Erkin Ulker, Stephanie Cheylan, Goncal Badenes, Michael Forster, Ullrich Scherf, and Ekmel Ozbay, “A hybrid light source with integrated inorganic light-emitting diode and organic polymer distributed feedback grating,” Nanotechnology, volume 19, 195202 (2008).

Yu Zhang, Mo Yang, Nathaniel G. Portney, Daxiang Cui, Gurer Budak, Ekmel Ozbay, Mihrimah Ozkan, and Cengiz S. Ozkan, “Zeta potential: a surface electrical characteristic to probe the interaction of nanoparticles with normal and cancer human breast epithelial cells,” Biomedical Microdevices, volume 10, 321 (2008).

Kamil Boratay Alici, and Ekmel Ozbay, “A planar metamaterial: Polarization independent fishnet structure,” Photonics and Nanostructures, vol. 6, 102 (2008).

(invited) Ekmel Ozbay, and Koray Aydin “Negative refraction and imaging beyond the diffraction limit by a two-dimensional left-handed metamaterial,” Photonics and Nanostructures, vol. 6, 108 (2008).

Koray Aydin, Zhaofeng Li, Serafettin Bilge, and Ekmel Ozbay, “Experimental and numerical study of omega type bianisotropic metamaterials combined with a negative permittivity medium,” Photonics and Nanostructures, vol. 6, 116 (2008).

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay “Focusing surface plasmons via changing the incident angle,” Journal of Applied Physics, volume 103, 053105 (2008).

S. Acar , S.B. Lisesivdin , M. Kasap, S .Ozcelik and E .Ozbay, “Determination of two-dimensional electron and hole gas carriers in AlGaN/GaN/AlN heterostructures grown by Metal Organic Chemical Vapor Deposition”, Thin Solid Films, volume 516, 2041 (2008)

S. B. Lisesivdin, E. Arslan, M. Kasap, S .Ozcelik and E .Ozbay, “Self-consistent scattering analysis of the AlGaN/AlN/GaN/AlN heterostructures grown on 6H-SiC substrates using photo-Hall effect measurements”, Journal of Physics: Condensed Matter, volume 20, 045208 (2008).

Bayram Butun, Turgut Tut, Erkin Ulker, Tolga Yelboga, and Ekmel Ozbay “High-performance visible-blind GaN-based p-i-n photodetectors,” Applied Physics Letters, volume 92, 033507 (2008).

Zhaofeng Li, Humeyra Caglayan, Evrim Colak, and Ekmel Ozbay “Enhanced transmission and directivity from metallic subwavelength apertures with nonuniform and nonperiodic grooves,” Applied Physics Letters, volume 92, 011128 (2008).

E. Saenz, I. Semchenko, S. Khakhomov, K. Guven, R. Gonzalo, E. Ozbay, and S. Tretyakov, “Modeling of Spirals with Equal Dielectric, Magnetic, and Chiral Susceptibilities,” Electromagnetics, volume 28, 476-493 (2008).

Filiberto Bilotti, Alessandro Toscano, Lucio Vegni, Koray Aydin, Kamil Boratay Alici, and Ekmel Ozbay, “Equivalent-Circuit Models for the Design of Metamaterials Based on Artificial Magnetic Inclusions,” IEEE Transactions on Microwave Theory and Techniques, volume 55, 2865 (2007).

Kaan Guven, and Ekmel Ozbay “Directivity enhancement and deflection of the beam emitted from a photonic crystal waveguide via defect coupling “, Optics Express volume 15, 14973 (2007).

S.B. Lisesivdin, A. Yildiz, S. Acar, M. Kasap, S Ozcelik, and E. Ozbay “The effect of strain relaxation on electron transport in undoped Al0.25Ga0.75N/GaN heterostructures,” Physica B, volume 399, 132 (2007).

Zhaofeng Li, Ekmel Ozbay, Haibo Chen, Jianjun Chen, Fuhua Yang and Houzhi Zheng “Resonant cavity based compact efficient antireflection structures for photonic crystals,” Journal of Physics D, volume 40, 5873 (2007).

Mutlu Gokkavas, Serkan Butun, Turgut Tut, Necmi Biyikli, and Ekmel Ozbay, “AlGaN-based high-performance metal–semiconductor–metal photodetectors,” Photonics and Nanostructures, vol. 5, 53 (2007).

Bayram Butun, Jean Cesario, Stefan Enoch, Romain Quidant and Ekmel Ozbay, “InGaN green light emitting diodes with deposited nanoparticles,” Photonics and Nanostructures, vol. 5, 86 (2007).

T.F. Gundogdu, Mutlu Gokkavas, Kaan Guven, M. Kafesaki , C.M. Soukoulis, and Ekmel Ozbay “Simulation and micro-fabrication of optically switchable split ring resonators,” Photonics and Nanostructures, vol. 5, 106 (2007).

Turgut Tut, Bayram Butun, Mutlu Gokkavas, and Ekmel Ozbay, “High performance AlGaN-based avalanche photodiodes,” Photonics and Nanostructures, vol. 5, 140 (2007).

Zhaofeng Li, Koray Aydin, and Ekmel Ozbay “Highly directional emission from photonic crystals with a wide bandwidth,” Applied Physics Letters, volume 91, 121105 (2007).

Sabit Korcak M. Kemal Ozturk, Suleyman Corekci, Barıs Akaoglu, Hongbo Yu, Mehmet Cakmak, Semran Saglam, Suleyman Ozcelik, and Ekmel Ozbay, “Structural and optical properties of an InGaN/GaN nanostructure,” Surface Science, volume 601, 3892 (2007).

oray Aydin, Zhaofeng Li, M. Hudlicka, Sergei A. Tretyakov, and Ekmel Ozbay “Transmission characteristics of bianisotropic metamaterials based on omega shaped metallic inclusions,” New Journal of Physics, volume 9, 326 (2007).

S.B. Lisesivdin, A. Yildiz, S. Acar, M. Kasap, S Ozcelik, and E. Ozbay “Electronic transport characterization of AlGaN/GaN heterostructures using quantitative mobility spectrum analysis,” Applied Physics Letters, volume 91, 102113 (2007).

Z. Tekeli, Ş. Altındal, M. Çakmak, S. Ozçelik, and E. Ozbay, “The behavior of the I-V-T characteristics of inhomogeneous (Ni/Au)–Al0.3Ga0.7N/AlN/GaN heterostructures at high temperatures,” Journal of Applied Physics, volume 102, 054510 (2007).

Kaan Guven, Atilla O. Cakmak, Mehmet D. Caliskan, Tamarra F Gundogdu, Maria Kafesaki, Costas M Soukoulis, and Ekmel Ozbay, “Bilayer metamaterial: analysis of left-handed transmission and retrieval of effective medium parameters,” Journal of Optics A: Pure and Applied Optics volume 9, 361 (2007).

(invited) Ekmel Ozbay, Koray Aydin, and Kaan Guven, “Metamaterials with negative permeability and negative refractive index: experiments and simulations,” Journal of Optics A: Pure and Applied Optics volume 9, 301 (2007).

Zheludev, Nikolay, Ozbay, Ekmel “The magical land between the kingdoms of Nano and Meta” Journal Of Optics A-Pure And Applied Optics vol 9, Issue: 9, Special Issue: SI (2007)

Kamil Boratay Alici, Filiberto Bilotti, Lucio Vegni and Ekmel Ozbay, “Miniaturized negative permeability materials,” Applied Physics Letters, volume 91, 071121 (2007).

Koray Aydin, Irfan Bulu and Ekmel Ozbay “Subwavelength resolution with a negative-index metamaterial superlens,” Applied Physics Letters, volume 90, 254102 (2007).

S. Çörekçi, M. K. Öztürk, B. Akaoğlu, M. Çakmak, S. Özçelik, and E. Özbay, “Structural, morphological, and optical properties of AlGaN/GaN heterostructures with AlN buffer and interlayer,” Journal of Applied Physics, volume 101, 123502 (2007).

Emre Alptekin, Hongbo Yu, Ekmel Ozbay, and Ozgur Aktas “Low Damage Etching of GaN Surfaces via Bias-Assisted Photoenhanced Electrochemical Oxidation in Deionized Water,” J of Electronic Materials, vol. 36, pp. 629-633 (2007)

Ekmel Ozbay, Koray Aydin, Irfan Bulu and Kaan Guven, “Negative refraction, subwavelength focusing and beam formation by photonic crystals,” Journal of Physics D: Applied Physics, volume 40, 2652 (2007).

Koray Aydin, and Ekmel Ozbay “Left-handed metamaterial based superlens for subwavelength imaging of electromagnetic waves,” Applied Physics A, volume 87, 137 (2007).

S.B. Lisesivdin, S. Acar, M. Kasap, S Ozcelik, S. Gokden, and E. Ozbay “Scattering analysis of 2DEG carrier extracted by QMSA in undoped Al0.25Ga0.75N/GaN heterostructures,” Semiconductor Science and Technology, volume 22, 543 (2007).

Turgut Tut, Mutlu Gokkavas, Ayse Inal, and Ekmel Ozbay, “AlxGa1−xN -based avalanche photodiodes with high reproducible avalanche gain,” Applied Physics Letters, volume 90, 163506 (2007).

Kamil Boratay Alici, and Ekmel Ozbay “Electrically small split ring resonator antennas,” Journal of Applied Physics, volume 101, 083104 (2007).

Irfan Bulu, Humeyra Caglayan, Koray Aydin, K. Aydin, and Ekmel Ozbay “Study of the field emitted by a source placed inside a two-dimensional left-handed metamaterial,” Optics Letters, volume 32, 850 (2007).

Atilla Ozgur Cakmak, Kaan Guven, and Ekmel Ozbay “Planar bilayer metamaterial with left-handed transmission and negative refraction at microwave frequencies,” Physica Status Solidi B, volume 244, 1188 (2007).

Kamil Boratay Alici, and Ekmel Ozbay “Radiation properties of a split ring resonator and monopole composite,” Physica Status Solidi B, volume 244, 1192 (2007).

Koray Aydin, and Ekmel Ozbay “Experimental and numerical analyses of the resonances of split ring resonators,” Physica Status Solidi B, volume 244, 1197 (2007).

Ekmel Ozbay, Irfan Bulu, and Humeyra Caglayan “Transmission, refraction, and focusing properties of labyrinth based left-handed metamaterials,” Physica Status Solidi B, volume 244, 1202 (2007).

Kaan Guven, and Ekmel Ozbay “A plain photonic crystal for generating directional radiation from embedded sources,” Journal of Optics A: Pure and Applied Optics volume 9, 239 (2007).

Koray Aydin, and Ekmel Ozbay “Experimental investigation of reflection characteristics of left-handed metamaterials in free space,” IET Microwaves Antennas and Propagation, volume 1, 89 (2007).

Koray Aydin, and Ekmel Ozbay “Capacitor-loaded split ring resonators as tunable metamaterial components,” Journal of Applied Physics, volume 101, 024911 (2007).

Ozbay, Ekmel, Aydin, Koray “Experimental study of subwavelength focusing by left-handed metamaterials with a negative refractive index” Journal Of Nanophotonics vol 1, Article Number: 011695

Zalevsky, Zeev, Ozbay, Ekmel, Abdulhalim, Ibrahim “Guest Editorial: Selected Papers from the First Joint Israeli-Turkish Workshop on Nanophotonics” Journal Of Nanophotonics vol 1, Article Number: 011699

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay “Plasmonic structures with extraordinary transmission and highly directional beaming properties,” IEEE Microwave and Optical Technology Letters, volume 48, 2491(2006).

Koray Aydin, Irfan Bulu, and Ekmel Ozbay “Verification of impedance matching at the surface of left-handed materials,” IEEE Microwave and Optical Technology Letters, volume 48, 2548(2006).

Irfan Bulu, Humeyra Caglayan, and Ekmel Ozbay “Designing materials with desired electromagnetic properties,” IEEE Microwave and Optical Technology Letters, volume 48, 2611(2006).

Unlu, M. Selim, Ozbay, Ekmel, Goldberg, Bennett B., Van Hulst, Niek F. “Introduction to the issue on nanophotonics” Ieee Journal Of Selected Topics In Quantum Electronics vol 12, Issue: 6, pages: 1069-1071, Part: 1 (2006)

Turgut Tut, Mutlu Gokkavas, Bayram Butun, Serkan Butun, Erkin Ulker, and Ekmel Ozbay, “Experimental evaluation of impact ionization coefficients in AlxGa1−xN based avalanche photodiodes,” Applied Physics Letters, volume 89, 183524 (2006).

Koray Aydin, Irfan Bulu, and Ekmel Ozbay “Electromagnetic wave focusing from sources inside a two-dimensional left-handed material superlens,” New Journal of Physics, volume 8, 221 (2006).

Mutlu Gokkavas, Serkan Butun, HongBo Yu, Turgut Tut, Bayram Butun and Ekmel Ozbay, “Dual-color ultraviolet metal-semiconductor-metal AlGaN photodetectors,” Applied Physics Letters, volume 89, 143503 (2006).

Kaan Guven, Deniz Caliskan, and Ekmel Ozbay “Experimental observation of left-handed transmission in a bilayer metamaterial under normal-to-plane propagation “, Optics Express volume 14, 8685 (2006).

Serkan Butun, Mutlu Gokkavas, HongBo Yu, and Ekmel Ozbay, “Low dark current metal-semiconductor-metal photodiodes based on semi-insulating GaN,” Applied Physics Letters, volume 89, 073503 (2006).

(invited) Ekmel Ozbay, Irfan Bulu, Kaan Guven, Humeyra Caglayan, and Koray Aydin, “Observation of Negative Refraction and Focusing in Two-Dimensional Photonic Crystals,” Japanese Journal of Applied Physics, Vol. 45, 6064 (2006).

Hongbo Yu, Deniz Caliskan, and Ekmel Ozbay, “Growth of high crystalline quality semi-insulating GaN layers for high electron mobility transistor applications,” Journal of Applied Physics, Vol. 100, 033501 (2006).

Hongbo Yu, M. Kemal Ozturk, Suleyman Ozcelik, Ekmel Ozbay “A study of semi-insulating GaN grown on AlN buffer/sapphire substrate by metalorganic chemical vapor deposition” Journal Of Crystal Growth vol 293, Issue: 2, pages: 273-277 (2006)

M. Gokkavas, K. Guven, I. Bulu, K. Aydin, R.S. Penciu, M. Kafesaki, C.M. Soukoulis, and E. Ozbay, “Experimental demonstration of a left-handed metamaterial operating at 100 GHz,” Physical Review B, vol. 73, 193103 (2006).

Hongbo Yu, Erkin Ulker and Ekmel Ozbay, "MOCVD growth and electrical studies of p-type AlGaN with Al fraction 0.35", Journal of Crystal Growth 289, 419 (2006).

Serkan Butun, Turgut Tut, Bayram Butun, Mutlu Gokkavas, HongBo Yu, and Ekmel Ozbay, “Deep-Ultraviolet Al0.75Ga0.25N Photodiodes with Low Cut-off Wavelength and Low Leakage Current,” Applied Physics Letters, volume 88, 123503 (2006).

Irfan Bulu, Humeyra Caglayan, and Ekmel Ozbay, “Experimental demonstration of subwavelength focusing of electromagnetic waves by labyrinth-based two-dimensional metamaterials,” Optics Letters, vol. 31, 814 (2006).

Koray Aydin and Ekmel Ozbay, “Negative refraction through an impedance matched left-handed metamaterial slab,” Journal of Optical Society of America B. 23, p. 415 (2006).

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay, “Beaming of electromagnetic waves emitted through a subwavelength annular aperture,” Journal of Optical Society of America B. 23, p. 419 (2006).

(invited) Ekmel Ozbay, “Plasmonics: Merging Photonics and Electronics at Nanoscale Dimensions,” Review Article, Science, vol. 311, 189 (2006).

Koray Aydin, and Ekmel Ozbay “Identifying magnetic response of split-ring resonators at microwave frequencies,” Opto-Electronics Review volume 14, 193 (2006).

Kaan Guven, and Ekmel Ozbay “Near field imaging in microwave regime using double layer split-ring resonator based metamaterial,” Opto-Electronics Review volume 14, 213(2006).

Irfan Bulu, Humeyra Caglayan, and Ekmel Ozbay “Experimental demonstration of labyrinth-based left-handed metamaterials “, Optics Express 13, 10238 (2005).

K. Guven, K. Aydin, E. Ozbay, "Experimental analysis of true left-handed behaviour and transmission properties of composite metamaterials," Photonics and Nanostructures, vol. 3, pp. 75-78 (2005).

Tut, T, Butun, S, Butun, B, Gokkavas, M, Yu, HB, ,Ozbay, E “Solar-blind AlxGa1-xN-based avalanche photodiodes” Applied Physics Letters vol 87, Issue: 22, Article Number: 223502 (2005).

Irfan Bulu, Humeyra Caglayan, and Ekmel Ozbay, “Beaming of Light and Enhanced Transmission via Surface Modes of Photonic Crystals,” Optics Letters, vol. 30, 3078 (2005).

Koray Aydin, Irfan Bulu and Ekmel Ozbay, "Focusing of electromagnetic waves by a left-handed metamaterial flat lens", Optics Express 13, 8753 (2005).

Irfan Bulu, Humeyra Caglayan, Koray Aydin and Ekmel Ozbay “Compact size highly directive antennas based on the SRR metamaterial medium,” New Journal of Physics, volume 7, 223 (2005).

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay “Highly directional enhanced radiation from sources embedded inside three-dimensional photonic crystals,” Optics Express, volume 13, 7645 (2005).

Koray Aydin, Kaan Guven, Maria Kafesaki, Costas M. Soukoulis, and Ekmel Ozbay “Investigation of magnetic resonances for different split-ring resonator parameters and designs,” New Journal of Physics, volume 7, 168 (2005).

Irfan Bulu, Humeyra Caglayan, and Ekmel Ozbay, “Negative refraction and focusing of electromagnetic waves by metallodielectric photonic crystals,” Physical Review B, vol. 71, 045124 (2005).

Koray Aydin, Kaan Guven, C. M. Soukoulis, and Ekmel Ozbay “Observation of negative refraction and negative phase velocity in left-handed metamaterials,” Applied Physics Letters, volume 86, 124102 (2005).

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay “Extraordinary grating-coupled microwave transmission through a subwavelength annular aperture,” Optics Express, volume 13, 1666 (2005).

Necmi Biyikli, Ibrahim Kimukin, Turgut Tut, Orhan Aytur, and Ekmel Ozbay, "Fabrication and characterization of solar-blind Al0.6Ga0.4N MSM photodetectors,", Electronic Letters, volume 41, (2005).

S. Sena Akarca-Biyikli, Irfan Bulu, and Ekmel Ozbay, “Resonant excitation of surface plasmons in one-dimensional metallic grating structures at microwave frequencies,” J. Opt. A: Pure Appl. Opt., vol. 7, 159 (2005).

Ekmel Ozbay, Irfan Bulu, Koray Aydin, Humeyra Caglayan, K. Bora Alici, and Kaan Guven, “Highly Directive Radiation and Negative Refraction Using Photonic Crystals,” Laser Physics Journal, Vol. 15, 217 (2005).

K. Guven, and E. Ozbay, “Coupling and phase analysis of cavity structures in two-dimensional photonic crystals,” Physical Review B, vol. 71, 085108 (2005).

R. Moussa, S. Foteinopoulou, Lei Zhang, G. Tuttle, K. Guven, E. Ozbay, and C. M. Soukoulis, “Negative refraction and superlens behavior in a two-dimensional photonic crystal,” Physical Review B., vol. 71, 085106 (2005).

Turgut Tut, Necmi Biyikli, Ibrahim Kimukin, Tolga Kartaloglu, Orhan Aytur, Selim Unlu, and Ekmel Ozbay, "High Bandwidth-Efficiency Solar-Blind AlGaN Schottky Photodiodes with Low Dark Current", Solid State Electronics, volume 49, p. 117 (2005).

Koray Aydin, Kaan Guven, Nikos Katsarakis, Costas M. Soukoulis, and Ekmel Ozbay “Effect of disorder on magnetic resonance band gap of split-ring resonator structures,” Optics Express, volume 12, 5896 (2004).

K. Aydin, K. Guven, Lei Zhang, M. Kafesaki, C. M. Soukoulis, and E. Ozbay “Experimental Observation of True Left-Handed Transmission Peak in Metamaterials,” Optics Letters, volume 29, 2623 (2004).

K. Guven, K. Aydin, K. B. Alici, C. M. Soukoulis, and E. Ozbay, “Spectral negative refraction and focusing analysis of a two-dimensional left-handed photonic crystal lens,” Physical Review B, vol. 70, 205125 (2004).

N. Katsarakis, T. Koschny, M. Kafesaki, E.N. Economou, E. Ozbay, C. M. Soukoulis, “Left- and right-handed transmission peaks near the magnetic resonance frequency in composite metamaterials,” Physical Review B., vol. 70, 201101 (2004).

Necmi Biyikli, Ibrahim Kimukin, Turgut Tut, Tolga Kartaloglu, Orhan Aytur, and Ekmel Ozbay, "High-speed characterization of solar-blind AlxGa1xN p-i-n photodiodes", Semiconductor Science & Technology, volume 19, 1259 (2004).

(invited) Ekmel Ozbay, Kaan Guven, Ertugrul Cubukcu, Koray Aydin and K. Bora Alici, “Negative Refraction and Subwavelength Focusing using photonic crystals,” Modern Physics Letters B, Vol. 18, No. 25 (2004) 1275-1291.

S. Sena Akarca-Biyikli, Irfan Bulu, and Ekmel Ozbay “Enhanced transmission of microwave radiation in one-dimensional metallic gratings with sub-wavelength aperture,” Applied Physics Letters, volume 85, 1098 (2004).

(invited) Ekmel Ozbay, Necmi Biyikli, Ibrahim Kimukin, T. Tut, T. Kartaloglu, and Orhan Aytur, "High-Performance Solar-Blind Photodetectors Based on AlxGa1-xN Heterostructures", IEEE Journal of Selected Topics in Quantum Electronics, volume 10, issue 4, p. 742 (2004).

Necmi Biyikli, Ibrahim Kimukin, Orhan Aytur, and Ekmel Ozbay, "ITO-Schottky Photodiodes for High-Performance Detection in the UV-IR Spectrum", IEEE Journal of Selected Topics in Quantum Electronics, volume 10, issue 4, p. 759 (2004).

Ibrahim Kimukin, Necmi Biyikli, Tolga Kartaloglu, and Ekmel Ozbay, "High-speed InSb p-i-n photodiodes", IEEE Journal of Selected Topics in Quantum Electronics, volume 10, issue 4, p. 766 (2004).

Necmi Biyikli, Ibrahim Kimukin, Orhan Aytur, and Ekmel Ozbay, "Solar-blind AlGaN-based p-i-n photodiodes with low dark current and high detectivity", IEEE Photonics Technology Letters, volume 16, No: 7, p. 1718 (2004).

Bayram Butun, Necmi Biyikli, Ibrahim Kimukin, Orhan Aytur, Ekmel Ozbay P. A. Postigo, J. P. Silveira, and A. R. Alija “High-speed 1.55 mm operation of low-temperature-grown GaAs-based resonant-cavity-enhanced p– i– n photodiodes,” Applied Physics Letters, volume 84, 4185 (2004)

(invited) Ekmel Ozbay, K. Guven, K. Aydin and M. Bayindir, “Physics and applications of photonic nanocrystals,” International Journal of Nanotechnology, vol. 1, 379 (2004).

Ertugrul Cubukcu, Koray Aydin, Ekmel Ozbay, S. Foteinopolou, and Costas Soukoulis, "Subwavelength resolution in a two-dimensional photonic crystal based superlens", Physical Review Letters, vol. 91, p. 2140 (2003).

Irfan Bulu, Humeyra Caglayan, and Ekmel Ozbay, “Highly directive radiation from sources embedded inside photonic crystals,” Applied Physics Letters, volume 83, 3263 (2003).

Ibrahim Kimukin, Necmi Biyikli, and Ekmel Ozbay, “InSb high-speed photodetectors grown on GaAs substrate,” Journal of Applied Physics, vol. 94, 5414 (2003).

Ekmel Ozbay, Koray Aydin, Ertugrul Cubukcu, and Mehmet Bayindir, “Transmission and Reflection Properties of Composite Double Negative Metamaterials in Free Space,” IEEE Trans. on Antennas and Propagation vol. 51, 2592 (2003).

Ertugrul Cubukcu, Koray Aydin, Ekmel Ozbay, S. Foteinopolou, and Costas Soukoulis, “Negative Refraction by Photonic Crystals,” Nature, vol. 423, 604 (2003).

Irfan Bulu, Humeyra Caglayan, and Ekmel Ozbay, “Radiation properties of sources inside photonic crystals,” Physical Review B., vol. 67, 205103 (2003).

Necmi Biyikli, Ibrahim Kimukin, Tolga Kartaloglu, Orhan Aytur and, Ekmel Ozbay, “High-speed solar-blind photodetectors with indium-tin-oxide Schottky Contacts,” Applied Physics Letters, volume 81, 4514 (2003).

Necmi Biyikli , Tolga Kartaloglu , Orhan Aytur , Ibrahim Kimukin, and Ekmel Ozbay “High-Performance Solar-Blind AlGaN Schottky Photodiodes,” MRS Internet J. Nitride Semicond. Res., volume 8, 2 (2003).

Necmi Biyikli, Tolga Kartaloglu, Orhan Aytur, Ibrahim Kimukin, and Ekmel Ozbay “High-Speed Visible-Blind Resonant Cavity Enhanced AlGaN Schottky Photodiodes,” MRS Internet J. Nitride Semicond. Res., volume 8, 8 (2003).

Mehmet Bayindir and Ekmel Ozbay, “Dropping of electromagnetic waves through localized modes in three-dimensional photonic band gap structure,” Applied Physics Letters, volume 81, 4514 (2002).

Mehmet Bayindir and Ekmel Ozbay, “Band Dropping via coupled photonic crystal waveguide,” Optics Express, volume 10, 1279 (2002).

Necmi Biyikli, Ibrahim Kimukin, Turgut Tut, Orhan Aytur and, Ekmel Ozbay, “Solar-blind AlGaN-based Schottky photodiodes with low noise and high detectivity,” Applied Physics Letters, volume 81, p. 3272 (2002).

Mehmet Bayindir, K. Aydin, E. Ozbay, P. Markos, and C. M. Soukoulis "Transmission properties of composite metamaterials in free space," Applied Physics Letters, volume 81, 120 (2002).

L. Pintilie, E. Pentia, I. Matei, and I. Pintilie, and E. Ozbay, “Field-effect-assisted photoconductivity in PbS films deposited on silicon dioxide,” Journal of Applied Physics, vol. 91, 5782 (2002).

Ibrahim Kimukin,, Necmi Biyikli, Bayram Butun, Orhan Aytur, and Ekmel Ozbay, “InGaAs Based High Performance p-i-n Photodiodes,” Photonics Technology Letters, vol. 14, 366 (2002).

Ibrahim Kimukin, Necmi Biyikli, and Ekmel Ozbay, “Ultrafast & highly efficient resonant cavity enhanced photodiodes,” Materials Science Forum 384-3: 241-248 (2002).

Mutlu Gokkavas, O. Dosunmu, M. Selim Unlu, Gokhan Ulu, R. P. Mirin, D. H. Christensen, and Ekmel Ozbay, “High-Speed High-Efficiency Large-Area Resonant Cavity Enhanced p-i-n Photodiodes for Multimode Fiber Communications,” Photonics Technology Letters, vol. 13, 1205 (2001).

Mehmet Bayindir, E. Cubukcu, I. Bulu, T. Tut, E. Ozbay, and C. M. Soukoulis “Photonic band gaps, defect characteristics, and waveguiding in two-dimensional disordered dielectric and metallic photonic crystals,” Physical Review B, Rapid Communications., vol. 64, 195113 (2001).

Mehmet Bayindir, C Kural and E Ozbay, “Coupled optical microcavities in one-dimensional photonic bandgap structures ,” Journal of Optics A: Pure and Applied Optics, volume 3, p.184, (2001)

R. Biswas, E. Ozbay, B. Temelkuran, Mehmet Bayindir, M.M. Sigalas, K.M. Ho, “Exceptionally directional sources with photonic-bandgap crystals,” Journal of Optical Society of America B. 18, p. 1684 (2001).

Necmi Biyikli, Tolga Kartaloglu, Orhan Aytur, Ibrahim Kimukin,and Ekmel Ozbay, “ High-speed visible blind GaN-based indium tin oxide Schottky photodiodes,” Applied Physics Letters, volume 79, p. 2838 (2001).

Mehmet Bayindir, E. Cubukcu, I. Bulu, T. Tut, E. Ozbay,“Photonic band gaps and localization in two-dimensional metallic quasicrystals,” Europhys. Lett., 56 (1), pp. 41–46 (2001).

Mehmet Bayindir, S. Tanriseven, A. Aydinli, and E. Ozbay, “Strong Enhancement of spontaneous emission in amorphous-silicon-nitride photonic crystal based couple-microcavity structure,” Applied Physics A, vol. 73, 125 (2001).

Necmi Biyikli, Ibrahim Kimukin, Orhan Aytur, Mutlu Gokkavas, M. Selim Unlu, Ekmel Ozbay, “ 45-GHz Bandwidth-Efficiency Resonant Cavity Enhanced ITO-Schottky Photodiodes,” Photonics Technology Letters, vol. 13, 705 (2001).

A. S. Ergun, A. Atalar, B. Temelkuran, and E. Ozbay, "A new detection method for capacitive micromachined ultrasonic transducers,” IEEE Trans. Ultrason., Ferroelect., Freq. Contr., vol. 48, p. 932 (2001).

E. Pentia, L. Pintilie, I. Matei, T. Botila and E. Ozbay, "Chemically prepared nanocrystalline PbS thin films," Journal of Optoelectronics and Advanced Materials 3 (2), 525-530 (2001).

Mehmet Bayindir, E. Cubukcu, I. Bulu, and E. Ozbay, “Photonic band-gap effect, localization, and waveguiding in the two-dimensional Penrose lattice,” Physical Review B, Rapid Communications., vol. 63, 161104 (2001).

M. Bayindir, E. Ozbay , B. Temelkuran, M. M. Sigalas, C. Soukoulis, R. Biswas, and K.M. Ho, “Guiding, bending, and splitting of electromagnetic waves in highly confined photonic crystal waveguides,” Physical Review B, Rapid Communications., vol. 63, 081107 (2001).

B. Temelkuran, Mehmet Bayindir, E. Ozbay, J. P. Kavanaugh, M. M. Sigalas, and G. Tuttle, “Quasi-metallic silicon micromachined photonic crystals,” Applied Physics Letters, volume 77, pp. 264-266 (2001).

Mehmet Bayindir, S. Tanriseven, and E. Ozbay, “Propagation of light through localized coupled-cavity modes in one-dimensional photonic band-gap structures,” Applied Physics A, vol. 72, pp. 117-119 (2001).

I. Kimukin, N. Biyikli, E. Ozbay, and G. Tuttle “High-Speed GaAs Based Resonant-Cavity-Enhanced 1.3 Micron photodetector,” Applied Physics Letters, volume 77, No. 23, 3890 (2000).

Mehmet Bayindir, B. Temelkuran, and E. Ozbay, “Photonic-crystal-based beam splitters,” Applied Physics Letters, volume 77, No. 23, 3902 (2000).

M. Bayindir, B. Temelkuran, and E. Ozbay, “Heavy photons at coupled-cavity waveguide band edges in a three-dimensional photonic crystal” Physical Review B, Rapid Communications., vol. 62, 2247 (2000).

M. Bayindir, B. Temelkuran, and E. Ozbay, "Propagation of photons by hopping: A waveguiding mechanism through localized coupled cavities in three-dimensional photonic crystals", Physical Review B, Rapid Communications., vol. 61, 11855 (2000).

M. Bayindir, B. Temelkuran, and E. Ozbay, "Tight-Binding Description of the Coupled Defect Modes in Three-Dimensional Photonic Crystals", Physical Review Letters, vol. 84, p. 2140 (2000).

Burak Temelkuran, Mehmet Bayindir, and Ekmel Ozbay, “Photonic Crystal Based Antenna with a Very High Directivity,” Journal of Applied Physics, Communications, vol. 67, pp. 603-605 (2000)

Ekmel Ozbay, Necmi Biyikli, Ibrahim Kimukin, Orhan Aytür, Mutlu Gökkavas, Gökhan Ulu, R. Mirin, D. H. Christensen, and M. Selim Ünlü, “High-Speed >90% Quantum-Efficiency p-i-n Photodiodes with a Resonance Wavelength Adjustable in 795-835 nm Range,” Applied Physics Letters, volume 74, p. 1072 (1999).

M. Gokkavas, B. M. Onat, E. Ozbay, E. P. Ata, J. Xu, E. Towe, and M. S. Unlu, “Design and Optimization of High-Speed Resonant Cavity Enhanced Schottky Photodiodes, ” IEEE Journal of Quantum Electronics, volume 35, p. 208, February 1999.

B. Temelkuran, and E. Özbay, “Experimental Demonstration of Photonic Crystal Based Waveguides,” Applied Physics Letters, volume 74, p. 486 (25 January 1999).

B. Temelkuran, H. Altug, and E. Özbay, “Experimental Investigation of layer-by-layer Metallic Photonic Crystals,” IEE Proceedings on Optoelectronics, volume 145, p. 409 (1998).

A. S. Ergun, A. Atalar, B. Temelkuran, and E. Ozbay, "A sensitive detection method for capacitive ultrasonic transducers," Applied Physics Letters, volume 72, p. 2957 (1998).

M. S. Unlu, M. Gokkavas, B. M. Onat, E. Ata, E. Ozbay, R. P. Mirin, K. J. Knopp, K. A. Bertness, D. H. Christensen, “High bandwidth-efficiency resonant cavity enhanced Schottky photodiodes for 800-850 nm wavelength operation, ” Applied Physics Letters, volume 72, p. 2727 (1998).

B. Temelkuran, E. Özbay, J.P Kavanaugh, G. Tuttle, and K.M. Ho B. Temelkuran, “Resonant Cavity Enhanced Detectors Embedded in Photonic Crystals” Applied Physics Letters, volume 72, p. 2376 (1998).

B. M. Onat, M. Gokkavas, E. Ozbay, E.P. Ata, E. Towe, and M.S. Unlu, “ 100 GHz Resonant Cavity Enhanced Schottky Photodiodes,” Photonics Technology Letters., 10, p. 707 (1998).

B. Temelkuran, E. Özbay, M. Sigalas, C.M. Soukoulis, G. Tuttle, and K.M. Ho "Reflection Properties of Metallic Photonic Crystals," Applied Physics A 66, 363 (1998).

E. Ozbay, S. Islam, M. Gokkavas, O. Aytur, and M.S. Unlu, “ Fabrication of High-Speed Resonant Cavity Enhanced Schottky Photodiodes,” Photonics Technology Letters., 9, p. 672 (1997).

E. Özbay, B. Temelkuran, G.Tuttle, M. Sigalas, C.M. Soukoulis, and K.M. Ho "Defect Structures in Metallic Photonic Crystals" Applied Physics Letters volume 69, p. 3797 (1996).

R. Biswas, E. Özbay, and K.M. Ho,”Photonic band gaps with layer-by-layer double-etched structures,” Journal of Applied Physics. volume 80, p. 6749 (1996).

E. Özbay, " Layer-by-layer Photonic Band Crystals: From Microwave to Far-Infrared Frequencies," Journal of Optical Society of America B. 13, p. 1945 (1996).

E. Özbay, and B. Temelkuran, "Reflection Properties and Defect Formation in Photonic Crystals" Applied Physics Letters, volume 69, p. 743 (1996).

S. D. Cheng, R. Biswas, E. Özbay, J.S. McCalmont, G. Tuttle and K.M. Ho, “Optimized Dipole Antennas on Photonic Band Gap Crystals,” Applied Physics Letters, volume 67, p. 3399 (1995).

E. Özbay, G. Tuttle, J.S. McCalmont, R. Biswas, M. Sigalas, C.M. Soukoulis and K.M. Ho, "Laser-Micromachined Millimeter-Wave Photonic Band Gap Cavity Structures" Applied Physics Letters, volume 67, p. 1969 (1995).

J. Fastenau, E. Özbay, G. Tuttle, and F. Laabs, "Epitaxial Lift-Off of Thin InAs Layers," Journal of Electronic Materials, 24 (6), p. 757 (1995).

E. Özbay, G.Tuttle, R. Biswas, M. Sigalas, C.M. Soukoulis, and K.M. Ho, "Defect Structures in a layer-by-layer photonic band gap,” Physical Review B51, 13961 (1995).

J. S. Bostak, D. W. Van Der Weide, B. A. Auld, D. M. Bloom and E. Özbay, "All-Electronic Terahertz Spectroscopy System With Terahertz Free-Space Pulses," Journal of Optical Society of America B, vol. 11, p. 2561(1994).

E. Özbay, A. Abeyta, G. Tuttle, M. Tringides, R. Biswas, C.T. Chan, C. Soukoulis, and K.M. Ho, ”Measurement of Three-Dimensional Photonic Band-Gap in New Crystal Made of Dielectric Rods,” Physical Review B50, p.1945 (1994).

E. Özbay, G. Tuttle, R. Biswas, K.M. Ho, J. Bostak, and D. M. Bloom, "Double-Etch Geometry For Millimeter-Wave Photonic Band-Gap Crystals," Applied Physics Letters, 65, p. 1617 (1994).

E. Özbay, E. Michel, G. Tuttle, R. Biswas, K.M. Ho, J. Bostak, and D. M. Bloom, "Terahertz spectroscopy of three-dimensional photonic band gap crystal," Optics Letters 19, p.1155 (1994).

E. Özbay, E. Michel, G. Tuttle, R. Biswas, M. Sigalas, and K.M. Ho, “Micromachined millimeter-wave photonic bandgap crystals,” Applied Physics Letters, volume 64, p. 2059 (1994).

E. Özbay , D.M. Bloom, D. H. Chow, and J. N. Schulman, " 1.7 psec Microwave Integrated Circuit Compatible InAs/AlSb Resonant Tunneling Diodes," Electron Device Letters, EDL-14, p. 400 (1993).

K. D. Li, A. S. Hou, E. Özbay, and D. M. Bloom, "2.0 psec GaAs photodiode optoelectronic circuit for correlation applications," Applied Physics Letters, vol. 61, n. 26, p.3104 (1992).

D. H. Chow, J. N. Schulman, E. Özbay, and D. M. Bloom, "Investigation Of IN0.53GA0.47AS/ALAS Resonant Tunneling Diodes For High-Speed Switching," Applied Physics Letters, vol. 61, n. 14, p.1685 (1992).

I. P. Batra, S. Ciraci, and E. Özbay, "Strain and dipole effects in covalent-polar semiconductor superlattices," Physical Review B, vol. 44, no. 11, pp. 5550-5555 (1991).

E. Özbay and D.M. Bloom, "110 GHz Monolithic Resonant Tunneling Diode Trigger Circuit", Electron Device Letters, EDL-12, p.480-482 (1991).

A. Black, E. Özbay, and D. M. Bloom, "Colliding Pulse Phase Detector for Picosecond Resolution Timing Measurements," Electronics Letters, Vol. 27, No.18, p.1620-1622 (1991).

E. Özbay, K. D. Li and D. M. Bloom, "2.0 psec, 150 GHz GaAs Monolithic Photodiode and All-Electronic Sampler", Photonics Technology Letters, PTL-3, p.570-572 (1991).

E. Wolak, E. Özbay, B.G. Park, S.K. Diamond, D.M. Bloom, J.S. Harris,Jr. and E.R. Brown, "The Design Of Gaas/Alas Resonant Tunneling Diodes With Peak Current Densities Over 2x105 A cm-2" Journal of Applied Physics, 69 (5), p. 3345-3350, (1991).

S. K. Diamond, E. Özbay, M. J. W. Rodwell, Y. C. Pao, E. Wolak, J. S. Harris and D. M. Bloom, "Fabrication Of 200-Ghz Fmax Resonant-Tunneling Diodes For Integrated-Circuit And Microwave Applications", Electron Device Letters, EDL-10, p.104-106 (1989).

S. K. Diamond, E. Özbay, M. J. W. Rodwell, and D. M. Bloom, "Resonant Tunneling Diodes for Switching Applications" Applied Physics Letters, vol.54, 153 (1989).