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Asymmetric transmission of surface plasmon polaritons on planar gratings
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SYSNO ASEP 0457443 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Asymmetric transmission of surface plasmon polaritons on planar gratings Author(s) Kuzmiak, Vladimír (URE-Y) RID
Maradudin, A. A. (US)Source Title Physical Review. A. - : American Physical Society - ISSN 1050-2947
Roč. 92, č. 5 (2015), s. 538131-538139Number of pages 9 s. Publication form Print - P Language eng - English Country US - United States Keywords Electromagnetic wave polarization ; Photons ; Diffractive structures Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects LH12009 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support URE-Y - RVO:67985882 UT WOS 000364156300012 EID SCOPUS 84946924580 DOI 10.1103/PhysRevA.92.053813 Annotation We describe a surface structure consisting of a metal-air interface where the metallic part consists of two metallic segments with a periodic modulation of the interface between them. Such a structure possesses a different transmissivity for a surface plasmon polariton incident on it from one side of it than it has for a surface plasmon polariton incident on it from the opposite side. This asymmetric transmission of a surface plasmon polariton is based on the suppression of the zero-order Bragg beam which, for a certain value of the modulation depth, is not transmitted through the structure, while the diffraction efficiencies of the +1 and -1 Bragg beams can be modified by varying the period of the grating and/or the angle of incidence. For a certain range of the incidence angle one can observe asymmetry in transmittance for the -1 mode, while the +1 mode is completely suppressed. By varying the material and geometrical parameters of the diffractive structure one can control the contrast transmission that characterizes the degree of the asymmetry. This property of the structure is demonstrated by the results of computer simulation calculations Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2016
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