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      Two types of single-beam deflection and asymmetric transmission in photonic structures without interface corrugations

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      Author(s)
      Serebryannikov, A. E.
      Colak, E.
      Magath, T.
      Özbay, Ekmel
      Date
      2016
      Source Title
      Optical Society of America. Journal A : Optics, Image Science, and Vision
      Print ISSN
      1084-7529
      Publisher
      Optical Society of America
      Volume
      33
      Issue
      12
      Pages
      2450 - 2458
      Language
      English
      Type
      Article
      Item Usage Stats
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      262
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      Abstract
      We study single-beam deflection and asymmetry in transmission, two aspects of the same phenomenon that appear in the topologically simple, nonsymmetric, photonic crystal (PhC)-based structures without corrugations at the interfaces. Strong diffractions enabling efficient blazing, i.e., redistribution of the incident wave energy in favor of the desired higher diffraction order(s), can be achieved owing to the defect-like layer(s) embedded in a regular slab of PhC. The main features, together with the peculiarities of the two basic transmission types and relevant coupling and deflection scenarios, are discussed, for one of which a part of the PhC works in the evanescent-wave regime. Performances are suggested, in which efficient single-beam deflection and asymmetry in transmission can be obtained even when the irregular layer is deeply embedded. More than 97% of the incident wave energy can be converted into a single deflected beam that is associated with the first negative diffraction order, even though the entire structure is nonsymmetric and the diffractive element is located at some distance from the incidence interface.
      Keywords
      Diffraction
      Wave energy conversion
      Asymmetric transmissions
      Diffraction orders
      Diffractive element
      Evanescent wave
      Higher diffraction order
      Incident wave energy
      Nonsymmetric
      Photonic structure
      Deflection (structures)
      Permalink
      http://hdl.handle.net/11693/36964
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/JOSAA.33.002450
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      • Nanotechnology Research Center (NANOTAM) 1179
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