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Proceedings Paper

Tunable resonant narrow-band filter based on electro-optic materials
Author(s): Da Shu; Anne-Laure Fehrembach; Evgueni Popov
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Paper Abstract

We propose a tunable resonant narrow-band optical filter based on a two-dimensional grating on the top of a stack of dielectric layers including a layer of electro-optic (E-O) material, and demonstrate numerical results of the tunability. The structure is periodic in two orthogonal directions and the basic pattern is designed in order to increase the angular tolerance of the filter. The LiNbO3 and BaTiO3 were chosen due to their strong electro-optical properties. When an external electric field is applied on the E-O material layer, a displacement of the resonant peak in the spectra is observed. We have chosen the orientation of each E-O crystal so that the external electric field is applied in the direction corresponding to the greatest E-O coefficient.

Paper Details

Date Published: 25 April 2012
PDF: 6 pages
Proc. SPIE 8425, Photonic Crystal Materials and Devices X, 842520 (25 April 2012); doi: 10.1117/12.922626
Show Author Affiliations
Da Shu, Institut Fresnel, CNRS, Aix-Marseille Univ., Ecole Centrale Marseille (France)
Anne-Laure Fehrembach, Institut Fresnel, CNRS, Aix-Marseille Univ., Ecole Centrale Marseille (France)
Evgueni Popov, Institut Fresnel, CNRS, Aix-Marseille Univ., Ecole Centrale Marseille (France)


Published in SPIE Proceedings Vol. 8425:
Photonic Crystal Materials and Devices X
Hernán Ruy Míguez; Sergei G. Romanov; Lucio Claudio Andreani; Christian Seassal, Editor(s)

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