Browsing by Author "Serebryannikov, Andriy E."
Now showing items 1-8 of 8
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Correction to: Active tuning from narrowband to broadband absorbers using a sub-wavelength VO2 embedded layer
Osgouei, Ataollah Kalantari; Hajian, Hodjat; Khalichi, Bahram; Serebryannikov, Andriy E.; Ghobadi, Amir; Özbay, Ekmel (Springer, 2021-02-04)Metamaterial perfect absorbers (MPAs) with dynamic thermal tuning features are able to control the absorption performance of the resonances, providing diverse applications spanning from optical switches and filters to ... -
Evidence of asymmetric beaming in a piecewise-linear propagation channel
Gündoğdu, Tamara Funda; Gökkavas, Mutlu; Serebryannikov, Andriy E.; Özbay, Ekmel (Optica, 2021-06)Asymmetric beaming in a piecewise-linear propagation channel is demonstrated for a single photonic-crystal prism at Gaussian-beam illumination. The used hybrid refraction– diffraction mechanism exploits oblique incidence, ... -
Hybrid indium tin oxide-Au metamaterial as a multiband bi-functional light absorber in the visible and near-infrared ranges
Osgouei, Ataollah Kalantari; Hajian, Hodjat; Serebryannikov, Andriy E.; Özbay, Ekmel (2021-04-23)Metamaterial nearly perfect light absorbers (MPAs) with dual-narrowband functionality—that absorb light in two narrowband adjacent wavelength regions—have attracted considerable attention due to their intriguing applications, ... -
Multifunctional tunable gradient metasurfaces for terahertz beam splitting and light absorption
Erçağlar, Veysel; Hajian, Hodjat; Serebryannikov, Andriy E.; Özbay, Ekmel (Optica, 2021-08-15)Obtaining functional devices with tunable features is benefi cial to advance terahertz (THz) science and technology. Here, we propose multifunctional gradient metasur faces that are composed of a periodic array of binary ... -
One-way and near-absolute polarization insensitive near-perfect absorption by using an all-dielectric metasurface
Yıldırım, Deniz Umut; Ghobadi, Amir; Soydan, Mahmut Can; Serebryannikov, Andriy E.; Özbay, Ekmel (OSA - The Optical Society, 2020)In this Letter, we numerically propose the one-way perfect absorption of near-infrared radiation in a tunable spectral range with high transmission in the neighboring spectral ranges. This functionality is obtained by using ... -
Photonic Crystal based spatial filtering
Colak, E.; Çakmak, A. Özgür; Serebryannikov, Andriy E.; Özbay, Ekmel (IEEE, 2009)Two dimensional Photonic Crystal structure is used to achieve spatial filtering. The structure provides bandstop filtering in the incident angle range of 18° to 38°. The transmission is close to unity outside of this range. ... -
Thermally switchable, bifunctional, scalable, mid-infrared metasurfaces with VO2 grids capable of versatile polarization manipulation and asymmetric transmission
Serebryannikov, Andriy E.; Lakhtakia, Akhlesh; Özbay, Ekmel (Optica Publishing Group (formerly OSA), 2022-12-01)We conceptualized three-array scalable bifunctional metasurfaces comprising only three thin strip grids and numerically determined their characteristics in the mid-infrared spectral regime for switchable operation scenarios ... -
Transmissive terahertz metasurfaces with vanadium dioxide split-rings and grids for switchable asymmetric polarization manipulation
Serebryannikov, Andriy E.; Lakhtakia, Akhlesh; Vandenbosch, Guy A. E.; Özbay, Ekmel (Nature Research, 2022-12)Metasurfaces containing arrays of thermally tunable metal-free (double-)split-ring meta-atoms and metal-free grids made of vanadium dioxide (VO2), a phase-change material can deliver switching between (1) polarization ...