Phonon interaction with coupled photonic-plasmonic modes in a phoxonic cavity | Zendy

Said El-Jallal | Zendy; Abdelali Mrabti | Zendy; Gaëtan Lévêque | Zendy; Abdellatif Akjouj | Zendy; Yan Pennec | Zendy; Bahram DjafariRouhani | Zendy

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Phonon interaction with coupled photonic-plasmonic modes in a phoxonic cavity

Author(s) -

Said El-Jallal,

Abdelali Mrabti,

Gaëtan Lévêque,

Abdellatif Akjouj,

Yan Pennec,

Bahram DjafariRouhani

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4968615

Subject(s) - plasmon , nanowire , photonic crystal , coupling (piping) , materials science , phonon , photonics , condensed matter physics , optoelectronics , optics , physics , metallurgy

We present a theoretical investigation of the acousto-optic interaction in a two-dimensional phoxonic crystal cavity containing a metallic nanowire. The crystal is constituted by a square array of cylindrical holes in a TiO2 matrix containing a cavity inside which a gold nanowire is introduced. The optical modes of the cavity are therefore of combined photonic-plasmonic character. We calculate the strength of coupling between these modes and the localized phonons of the cavity, based on the “Moving Interface” mechanism of acousto-optic coupling. We discuss the coupling strength as a function of the size and position of the metallic nanowire and compare the results with those of a cavity without metallic particle

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