Počet záznamů: 1
Controlling surface plasmon polaritons by a static and/or time-dependent external magnetic field
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SYSNO ASEP 0387217 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Controlling surface plasmon polaritons by a static and/or time-dependent external magnetic field Tvůrce(i) Kuzmiak, Vladimír (URE-Y) RID
Eyderman, Sergey (URE-Y)
Vanwolleghem, M. (FR)Celkový počet autorů 3 Zdroj.dok. Physical Review B - ISSN 1098-0121
Roč. 86, č. 4 (2012), s. 045403Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova one-way electromegnetic waveguide ; magneto-optic photonic crystal ; surface plasmon polarirton Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika CEP GAP205/10/0046 GA ČR - Grantová agentura ČR Institucionální podpora URE-Y - RVO:67985882 UT WOS 000307015000008 DOI https://doi.org/10.1103/PhysRevB.86.045403 Anotace We have demonstrated numerically by using of Fourier Modal Method(FMM) that a waveguide formed by the interface of a metal and uniformly magnetized two-dimensional photonic crystal fabricated from a transparent dielectric magneto-optic (MO) material possesses a one-way frequency range where only a forward propagating surface plasmon polariton (SPP) mode is allowed to propagate. The non-reciprocity at the interface is introduced by the MO properties of the photonic crystal material, namely bismuth iron garnet which may be easily magnetically saturated by fields of the order of tens of mT. The results obtained by FMM have been validated by a theoretical model and a standard plane-wave method. By using a generalized finite-difference time-domain(FDTD) method, which allows studying the propagation of electromagnetic(EM) waves through media with a tensor MO permittivity, we studied transport properties of the one-way waveguide and we examined the influence of specific types of boundary conditions on one-way functionality in the presence of a dc and/or ac external magnetic field. By evaluating the Fourier transform of the energy density we have analyzed the behavior of the field patterns observed in the waveguide in the case of ac magnetic field, and have interpreted new and interesting features associated with the redistribution of the EM field that may offer new mechanisms for dynamical control of SPP flow. Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2013
Počet záznamů: 1