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Journal Articles

Publisher's Note: “ α -MoO3–SiC metasurface for mid-IR directional propagation of phonon polaritons and passive daytime radiative cooling” [Appl. Phys. Lett. 121 , 182201 (2022)]

Veysel Erçağlar, Hodjat Hajian, Ivan D. Rukhlenko, Ekmel Ozbay
Journal: Applied Physics Letters
Appl. Phys. Lett. 121, 219901 (2022)
https://doi.org/10.1063/5.0134300
Published: November 2022
View article titled, Publisher's Note: “ <em>α</em> -MoO<sub>3</sub>–SiC metasurface for mid-IR directional propagation of phonon polaritons and passive daytime radiative cooling” [Appl. Phys. Lett. 121 , 182201 (2022)]
Open the PDF for Publisher's Note: “ <em>α</em> -MoO<sub>3</sub>–SiC metasurface for mid-IR directional propagation of phonon polaritons and passive daytime radiative cooling” [Appl. Phys. Lett. 121 , 182201 (2022)] in another window
Journal Articles

α-MoO3–SiC metasurface for mid-IR directional propagation of phonon polaritons and passive daytime radiative cooling

Veysel Erçağlar, Hodjat Hajian, Ivan D. Rukhlenko, Ekmel Ozbay
Journal: Applied Physics Letters
Appl. Phys. Lett. 121, 182201 (2022)
https://doi.org/10.1063/5.0128110
Published: October 2022
View article titled, α-MoO<sub>3</sub>–SiC metasurface for mid-IR directional propagation of phonon polaritons and passive daytime radiative cooling
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Includes: Supplementary data
Journal Articles

Multifunctional blazed gratings for multiband spatial filtering, retroreflection, splitting, and demultiplexing based on C2 symmetric photonic crystals

Andriy E. Serebryannikov, Diana C. Skigin, Guy A. E. Vandenbosch, Ekmel Ozbay
Journal: Journal of Applied Physics
J. Appl. Phys. 131, 223101 (2022)
https://doi.org/10.1063/5.0093989
Published: June 2022
View article titled, Multifunctional blazed gratings for multiband spatial filtering, retroreflection, splitting, and demultiplexing based on <em>C</em><sub>2</sub> symmetric photonic crystals
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Journal Articles

Epsilon-near-zero enhancement of near-field radiative heat transfer in BP/hBN and BP/α-MoO3 parallel-plate structures

Hodjat Hajian, Ivan D. Rukhlenko, Veysel Erçağlar, George Hanson, Ekmel Ozbay
Journal: Applied Physics Letters
Appl. Phys. Lett. 120, 112204 (2022)
https://doi.org/10.1063/5.0083817
Published: March 2022
View article titled, Epsilon-near-zero enhancement of near-field radiative heat transfer in BP/hBN and BP/α-MoO<sub>3</sub> parallel-plate structures
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Includes: Supplementary data
Journal Articles

Correlation-based study of FEA and IR thermography to reveal the 2DEG temperature of a multi-fingered high-power GaN HEMT

Yilmaz Durna, Hasan Kocer, Yunus Erdem Aras, Mahmut Can Soydan, Bayram Butun, Ekmel Ozbay
Journal: Journal of Applied Physics
J. Appl. Phys. 131, 085107 (2022)
https://doi.org/10.1063/5.0084511
Published: February 2022
View article titled, Correlation-based study of FEA and IR thermography to reveal the 2DEG temperature of a multi-fingered high-power GaN HEMT
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Journal Articles

Tunable infrared asymmetric light transmission and absorption via graphene-hBN metamaterials

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Hodjat Hajian, Amir Ghobadi, Andriy E. Serebryannikov, Bayram Butun, Guy A. E. Vandenbosch, Ekmel Ozbay
Journal: Journal of Applied Physics
J. Appl. Phys. 126, 193102 (2019)
https://doi.org/10.1063/1.5118887
Published: November 2019
View article titled, Tunable infrared asymmetric light transmission and absorption via graphene-hBN metamaterials
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Journal Articles

Electrically controllable plasmon induced reflectance in hybrid metamaterials

Mohsin Habib, Murat Gokbayrak, Ekmel Ozbay, Humeyra Caglayan
Journal: Applied Physics Letters
Appl. Phys. Lett. 113, 221105 (2018)
https://doi.org/10.1063/1.5063461
Published: November 2018
View article titled, Electrically controllable plasmon induced reflectance in hybrid metamaterials
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Journal Articles

Gaussian distribution in current-conduction mechanism of (Ni/Pt) Schottky contacts on wide bandgap AlInGaN quaternary alloy

Engin Arslan, S¸emsettin Altındal, Sertaç Ural, Ömer Ahmet Kayal, Mustafa Öztürk, Ekmel Özbay
Journal: Journal of Vacuum Science & Technology B
J. Vac. Sci. Technol. B 36, 061209 (2018)
https://doi.org/10.1116/1.5045259
Published: November 2018
View article titled, Gaussian distribution in current-conduction mechanism of (Ni/Pt) Schottky contacts on wide bandgap AlInGaN quaternary alloy
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Journal Articles

Long-range Tamm surface plasmons supported by graphene-dielectric metamaterials

Hodjat Hajian, Humeyra Caglayan, Ekmel Ozbay
Journal: Journal of Applied Physics
J. Appl. Phys. 121, 033101 (2017)
https://doi.org/10.1063/1.4973900
Published: January 2017
View article titled, Long-range Tamm surface plasmons supported by graphene-dielectric metamaterials
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Journal Articles

Enhanced transmission and beaming via a zero-index photonic crystal

Hodjat Hajian, Ekmel Ozbay, Humeyra Caglayan
Journal: Applied Physics Letters
Appl. Phys. Lett. 109, 031105 (2016)
https://doi.org/10.1063/1.4959085
Published: July 2016
View article titled, Enhanced transmission and beaming via a zero-index photonic crystal
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Journal Articles

Diffraction inspired unidirectional and bidirectional beam splitting in defect-containing photonic structures without interface corrugations

Evrim Colak, Andriy E. Serebryannikov, P. V. Usik, Ekmel Ozbay
Journal: Journal of Applied Physics
J. Appl. Phys. 119, 193108 (2016)
https://doi.org/10.1063/1.4949509
Published: May 2016
View article titled, Diffraction inspired unidirectional and bidirectional beam splitting in defect-containing photonic structures without interface corrugations
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Journal Articles

Effect of in-material losses on terahertz absorption, transmission, and reflection in photonic crystals made of polar dielectrics

Andriy E. Serebryannikov, S. Nojima, K. B. Alici, Ekmel Ozbay
Journal: Journal of Applied Physics
J. Appl. Phys. 118, 133101 (2015)
https://doi.org/10.1063/1.4932017
Published: October 2015
View article titled, Effect of in-material losses on terahertz absorption, transmission, and reflection in photonic crystals made of polar dielectrics
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Journal Articles

Voltage contrast X-ray photoelectron spectroscopy reveals graphene-substrate interaction in graphene devices fabricated on the C- and Si- faces of SiC

Pinar Aydogan, Engin Arslan, Semih Cakmakyapan, Ekmel Ozbay, Wlodek Strupinski, Sefik Suzer
Journal: Applied Physics Letters
Appl. Phys. Lett. 107, 121603 (2015)
https://doi.org/10.1063/1.4931725
Published: September 2015
View article titled, Voltage contrast X-ray photoelectron spectroscopy reveals graphene-substrate interaction in graphene devices fabricated on the C- and Si- faces of SiC
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Includes: Supplementary data
Journal Articles

Effects of rapid thermal annealing on the structural and local atomic properties of ZnO: Ge nanocomposite thin films

Abdullah Ceylan, Abdul K. Rumaiz, Deniz Caliskan, Sadan Ozcan, Ekmel Ozbay, J. C. Woicik
Journal: Journal of Applied Physics
J. Appl. Phys. 117, 105303 (2015)
https://doi.org/10.1063/1.4914522
Published: March 2015
View article titled, Effects of rapid thermal annealing on the structural and local atomic properties of ZnO: Ge nanocomposite thin films
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Journal Articles

Low dark current and high speed ZnO metal–semiconductor–metal photodetector on SiO2/Si substrate

Deniz Çalışkan, Bayram Bütün, M. Cihan Çakır, Şadan Özcan, Ekmel Özbay
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 161108 (2014)
https://doi.org/10.1063/1.4899297
Published: October 2014
View article titled, Low dark current and high speed ZnO metal–semiconductor–metal photodetector on SiO<sub>2</sub>/Si substrate
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Journal Articles

Step-edge-induced resistance anisotropy in quasi-free-standing bilayer chemical vapor deposition graphene on SiC

Tymoteusz Ciuk, Semih Cakmakyapan, Ekmel Ozbay, Piotr Caban, Kacper Grodecki, Aleksandra Krajewska, Iwona Pasternak, Jan Szmidt, Wlodek Strupinski
Journal: Journal of Applied Physics
J. Appl. Phys. 116, 123708 (2014)
https://doi.org/10.1063/1.4896581
Published: September 2014
View article titled, Step-edge-induced resistance anisotropy in quasi-free-standing bilayer chemical vapor deposition graphene on SiC
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Journal Articles

Structural and electrical characterizations of InxGa1-xAs/InP structures for infrared photodetector applications

Tarık Asar, Süleyman Özçelik, Ekmel Özbay
Journal: Journal of Applied Physics
J. Appl. Phys. 115, 104502 (2014)
https://doi.org/10.1063/1.4868056
Published: March 2014
View article titled, Structural and electrical characterizations of In<sub>x</sub>Ga<sub>1-x</sub>As/InP structures for infrared photodetector applications
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Journal Articles

Resonance broadening and tuning of split ring resonators by top-gated epitaxial graphene on SiC substrate

Semih Cakmakyapan, Levent Sahin, Francesco Pierini, Wlodek Strupinski, Ekmel Ozbay
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 181116 (2013)
https://doi.org/10.1063/1.4828499
Published: October 2013
View article titled, Resonance broadening and tuning of split ring resonators by top-gated epitaxial graphene on SiC substrate
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Journal Articles

Silicon nanowire network metal-semiconductor-metal photodetectors

Emre Mulazimoglu, Sahin Coskun, Mete Gunoven, Bayram Butun, Ekmel Ozbay, Rasit Turan, Husnu Emrah Unalan
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 083114 (2013)
https://doi.org/10.1063/1.4819387
Published: August 2013
View article titled, Silicon nanowire network metal-semiconductor-metal photodetectors
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Journal Articles

Experimental study of broadband unidirectional splitting in photonic crystal gratings with broken structural symmetry

Evrim Colak, Andriy E. Serebryannikov, A. Ozgur Cakmak, Ekmel Ozbay
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 151105 (2013)
https://doi.org/10.1063/1.4800147
Published: April 2013
View article titled, Experimental study of broadband unidirectional splitting in photonic crystal gratings with broken structural symmetry
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