Guided modes in magneto-optical waveguides and the role in resonant transmission | Zendy

TengFei Li | Zendy; Tianjing Guo | Zendy; Hai-Xu Cui | Zendy; Mu Yang | Zendy; Ming Kang | Zendy; Qinghua Guo | Zendy; Jing Chen | Zendy

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Guided modes in magneto-optical waveguides and the role in resonant transmission

Author(s) -

TengFei Li,

Tianjing Guo,

Hai-Xu Cui,

Mu Yang,

Ming Kang,

Qinghua Guo,

Jing Chen

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.009563

Subject(s) - optics , materials science , transmission (telecommunications) , magnetic field , anisotropy , metal , extraordinary optical transmission , field (mathematics) , physics , surface plasmon , plasmon , telecommunications , quantum mechanics , metallurgy , surface plasmon polariton , mathematics , computer science , pure mathematics

Magneto-optical (MO) effect can break the reciprocal propagation of an optical wave along a MO-metal interface. We show that this nonreciprocal property also influences the guided modes in metal-MO-metal waveguides. Especially, the field profiles of the guided modes are neither symmetric nor anti-symmetric, but asymmetric. We then study the resonant optical transmission through a thin metal film with subwavelength MO slits. Magnetic field changes the transmission spectra of the structure, and a MO-induced transparent window is open, where the MO medium becomes extremely anisotropic. The guided-mode mediated high transmission is associated with an asymmetric field distribution and a circling energy flux.

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