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Optical Engineering

Narrow bandwidth wavelength filter by guided mode resonance
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Paper Abstract

Simple resonant structures that permit holographic reflection filtering are studied. The filters under study work under a 45-deg incidence for a wavelength of λ=632.8 nm, a condition useful for future inclusion in substrate mode systems. First, the influence of the structural parameters of the grating and the waveguide on the position and the shape of the resonance peaks are studied by numerical computation. The numerical results, obtained within the rigorous coupled wave theory, are compared with the measured response of some filters. These filters contain a grating recorded by holography deposited on the substrate. In the case of the bilayer filter, a waveguide is introduced between the grating and the substrate. Second, the numerical results are used for the conception of an active substrate mode spectral filter built from electro-optic zinc oxide.

Paper Details

Date Published: 1 November 2004
PDF: 9 pages
Opt. Eng. 43(11) doi: 10.1117/1.1805565
Published in: Optical Engineering Volume 43, Issue 11
Show Author Affiliations
Cedric J.M. Lenaerts, Univ. de Liege (Belgium)
Vincent Moreau, Univ. de Liège (Belgium)
Yves F. Lion, Univ. de Liège (Belgium)
Yvon L. M. Renotte, Univ. de Liège (Belgium)


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