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Telecommunications and Radio Engineering
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ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v73.i1.40
pages 43-59

SURFACE ELECTROMAGNETIC STATES AT AN INTERFACE BETWEEN A PHOTONIC CRYSTAL AND A PLASMA-LIKE MEDIUM IN AN EXTERNAL CONSTANT MAGNETIC FIELD

Yu. O. Averkov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine
N. N. Beletskii
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085
S. I. Tarapov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine; Kharkiv National University of Radio Electronics 14, Nauka Av, Kharkiv 61166, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61077, Ukraine
A. A. Kharchenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
Vladimir M. Yakovenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085

RÉSUMÉ

In this paper, we represent the theoretical analysis of the influence of an external constant magnetic field on properties of the surface electromagnetic states at an interface between a plasma-like medium and a photonic crystal. Each of these media is supposed to be a semi-infinite one. We assume that the elementary cell of the photonic crystal is formed by two different non-magnetic dielectrics. It has been shown that surface electromagnetic states can exist at the frequencies exceeding the plasma frequency. The permanent magnetic field is found to cause the appearance of the energy flux of surface electromagnetic states that is parallel to the interface. In the case of the finite photonic crystal the reflection coefficient of the structure has been derived. As an example of the plasma-like medium we consider a wire medium with an effective plasma frequency in microwave range. It has been found that the minimum of the reflection coefficient associated with the excitation of surface electromagnetic states shifts to the range of low frequencies with increasing the magnetic field. It has been shown that this shift is caused by the magnetic field influence on the Voigt permittivity of the plasma-like medium. The excitation of surface electromagnetic states at the interface between the wire medium and the photonic crystal has been experimentally observed. The effective plasma frequency of the wire medium has been measured. We have demonstrated that the temperature affects on both the location and the amplitude of the transmission peak associated with the excitation of surface electromagnetic states.


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