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A surface plasmon polariton analogue of a Wannier-Stark ladder
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SYSNO ASEP 0436727 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title A surface plasmon polariton analogue of a Wannier-Stark ladder Author(s) Kuzmiak, Vladimír (URE-Y) RID
Maradudin, A. A. (US)
Méndez, E.R. (MX)Number of authors 3 Source Title Transparent Optical Networks (ICTON), 2014, 16th International Conference on. - Waršava : IEEE, 2014 / Jaworski Marek ; Marciniak Marian - ISSN 2162-7339 - ISBN 978-1-4799-5600-5 Pages s. 6876428 Number of pages 4 s. Publication form Print - P Action 16th International Conference on Transparent Optical Networks, ICTON 2014 Event date 06.07.2014-10.07.2014 VEvent location Graz Country AT - Austria Event type WRD Language eng - English Country PL - Poland Keywords Gratings ; Surface plasmon polariton ; Wave propagation Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering Institutional support URE-Y - RVO:67985882 EID SCOPUS 84906751027 DOI 10.1109/ICTON.2014.6876428 Annotation By using the finite-difference time-domain method we have investigated the propagation of a surface plasmon polariton on a metallic grating consisting of N equally spaced rectangular grooves, each with the same width but with varying depths. We find that the transmissivity of the surface plasmon polariton, and the power radiated into the vacuum, as functions of its frequency consist of N equally spaced dips and peaks, respectively, that have the form of a Wannier-Stark ladder. By using an analytical approach we show that the localized states with a constant difference in frequency qualitatively agree with the resonances obtained from solving the equations for symmetric modes associated with the crosswise plasmons, which identifies the coupling of the incident wave to localized modes confined within the groove as the major mechanism responsible for the existence of equally spaced resonances 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 2015
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