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Enhanced nonreciprocal effects in magnetoplasmonic systems supporting simultaneously localized and propagating plasmons

AuthorsKekesi, Renata ; Martín-Becerra, Diana ; Meneses-Rodríguez, David ; García-Pérez, Fernando ; Cebollada, Alfonso ; Armelles Reig, Gaspar
Issue Date20-Mar-2015
PublisherOptical Society of America
CitationOptics Express 23(6): 8128-8133 (2015)
Abstract© 2015 OSA. Perforated magnetoplasmonic Au/Co/Au multilayers support both localized and propagating surface plasmon resonances. The presence of holes produces an enhancement of the magnetic field modulation of the propagating surface plasmon wavevector with respect to the isostructural continuous film in the spectral region corresponding to the hole associated localized plasmon resonance. This is due to the increased electromagnetic field in the surrounding area of the resonant hole, and the subsequent additional contribution to the magnetic modulation of the continuous film. This novel concept that gives rise to enhanced magnetic field induced nonreciprocal effects can be of interest in the development of innovative platforms for sensing applications, optical isolators and modulators.
Publisher version (URL)http://dx.doi.org/10.1364/OE.23.008128
Identifiersissn: 1094-4087
Appears in Collections:(IMN-CNM) Artículos
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