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Browsing by Author "Turduev, M."

Browsing by Author "Turduev, M."

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  • Turduev, M.; Botey, M.; Herrero, R.; Giden, I.; Kurt, Hamza; Staliunas, K. (Institute of Electrical and Electronics Engineers Inc., 2014-12)
    We propose for the first time a simple realization of a two-dimensional Parity-Time symmetric hexagonal shaped photonic structure composed of honeycomb lattice. The structure has a symmetric periodic modulation of the ...
  • Bor, E.; Turduev, M.; Yasa, U.G.; Kurt, Hamza; Staliunas, K. (American Physical Society, 2018-12-10)
    In this paper, we present the numerical and experimental demonstration of asymmetric light transmission by a compact photonic crystal (PC) structure, which sustains semi-Dirac cone dispersion. The semi-Dirac point is ...
  • Botey, M.; Herrero, R.; Turduev, M.; Zhao, D.; Giden, I.; Kurt, Hamza; Staliunas, K. (IEEE Computer Society, 2014)
    We propose a simple realization of a 2-dimensonal (2D) PT-symmetric photonic structure: a honeycomb arrangement of alternating cylinders with gain or loss in a dielectric background. The structure provides a periodic ...
  • Botey, M.; Herrero, R.; Turduev, M.; Giden, I.; Kurt, Hamza; Staliunas, K. (Springer Science and Business Media, LLC, 2016)
    We propose a 2-dimensonal PT-symmetric photonic honeycomb structure that supports chiral Block-likemodes being its excitation input and frequency dependent. We show that while the fundamental resonant frequency excites the ...
  • Giden, I.H.; Kurt, Hamza; Turduev, M.; Staliunas, K. (Institute of Electrical and Electronics Engineers Inc., 2014)
    Graded Index Photonic Crystals (GRIN PhCs) are artificial periodic materials that possess gradually varying effective refractive indices. GRIN profiles can be formed by adjusting the radii or the locations of PhC unit ...
  • Turduev, M.;  Bor, E.;  Kurt, Hamza (Institute Of Physics Publishing, 2017-08)
    In this letter, we numerically designed and experimentally demonstrated a compact photonic structure for the subwavelength focusingof light using all-dielectric absorption-free and nonmagnetic scattering objects distributed ...
  • Turduev, M.;  Giden, I.H.;  Kurt, Hamza (Elsevier, 2015-03)
    In this manuscript, we propose the design of an inhomogeneous artificially created graded index (GRIN) medium to enrich the optical device functionalities of light by using periodic all-dielectric materials. Continuous ...
  • Mizeikis, V.; Hayran, Z.; Kurt, H.; Turduev, M.; Gailevi?ius, D.; Malinauskas, M.; Juodkazis, S.; Staliunas, K. (OSA - The Optical Society, 2019)
    We describe fabrication and properties of 3D photonic crystals with chirped lattice period using Direct Laser Write lithography in photoresists, and report on the optical properties of the fabricated structures. Experimental ...
  • Bor, E.; Babayigit, C.; Kurt, Hamza; Staliunas, K.; Turduev, M. (Optical Society of America, 2018-12-01)
    In this Letter, the design of a directional optical cloaking by a genetic algorithm is proposed and realized experimentally. A three-dimensional finite-difference time-domain method is combined with the genetic optimization ...
  • Babayiğit, C.; Bor, E.; Kurt, Hamza; Staliunas, K.; Turduev, M. (IEEE Computer Society, 2018-09)
    This study presents an optimal design of directional optical cloaking device based on evolutionary optimization approach. A cylindrical shaped perfectly electric conductor (PEC) material is selected as an object to be ...
  • Gumus, M.; Giden, I.H.; Akcaalan, O.; Turduev, M.; Kurt, Hamza (American Institute of Physics Inc., 2018-09-24)
    We propose compact S-vector superprism providing broadband wavelength sensitivity within a/λ = 0.610-0.635, where "a" is the lattice constant, λ is the incident wavelength, and S denotes the Poynting vector. The reported ...
  • Turduev, M.; Hayran, Z.;  Kurt, Hamza (American Institute Of Physics Inc., 2016-12)
    Sub-wavelength focusing of light holds great potential in various applications of science and engineering, including nanolithography, optical microscopy, optical measurements, and data storage. In the present paper, we ...
  • Bor, E.; Alparslan, O.; Turduev, M.; Hanay, Y.S.; Kurt, Hamza; Arakawa, S.; Murata, M. (OSA - The Optical Society, 2018-10-29)
    Recently, different nanophotonic computational design methods based on optimization algorithms have been proposed which revolutionized the conventional design techniques of photonic integrated devices. The intelligently ...
  • Gailevicius, D.; Hayran, Z.; Turduev, M.; Kurt, Hamza; Juodkazis, S.; Malinauskas, M.; Mizeikis, V.; Staliunas, K. (SPIE, 2017-01)
    We propose a high sensitivity photodetection tool at near-infrared frequencies, based on a principle of slowed- and stopped-light in chirped photonic micro/nano-structures. The main goal is to substantially increase the ...
  • Turduev, M.;  Bor, E.;  Kurt, Hamza (Institute Of Physics Publishing, 2017-06)
    The paper proposes a new design of an inhomogeneous artificially created photonic crystal lens structure consisting of annular dielectric rods to efficiently focus both transverse electric and transverse magnetic polarizations ...
  • Gailevi?ius, D.; Grinevi?iüte, L.; Babayigit, C.; Bor, E.; Turduev, M.; Purlys, V.; Tolenis, T.; Kurt, Hamza; Staliunas, K (Institute of Electrical and Electronics Engineers Inc., 2019-06)
    The idea of the angular, or equivalently - spatial, filtering by photonic crystals (PhCs) is based on a selective diffraction of the light propagating through the double-periodic photonic structure. The angular components ...
  • Botey, M.; Turduev, M.; Kurt, Hamza; Herrero, R.; Staliunas, K. (IEEE Computer Society, 2015-08)
    We study propagation light beams in 2D photonic periodic nanostructures with both index and gain/loss modulations. We determine the conditions for complex periodic media with in-phase gain and index modulations to support ...
  • Hayran, Z.; Turduev, M.; Botey, M.; Herrero, R.; Staliunas, K.; Kurt, Hamza (IEEE Computer Society, 2016)
    Photonic crystal waveguides supporting band gap guided modes hold great potential to tailor the group velocity of propagating light. We propose and explore different wavelength demultiplexer design approaches that utilize ...
  • Turduev, M.;  Botey, M.;  Giden, I.; Herrero, R.; Kurt, Hamza;  Ozbay, E.;  Staliunas, K. (American Physical Society, 2015-02)
    We propose a simple realistic two-dimensional complex parity-time-symmetric photonic structure that is described by a non-Hermitian potential but possesses real-valued eigenvalues. The concept is developed from basic ...