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Proceedings Paper • Open Access

Wide angle light scattering and complex optical filters: modelization and characterization

Paper Abstract

Because of their complexity (>100 layers) and their decreasing dimensions (~pixel size), performances of the new generation of optical filters for space application are degraded by wide angle light scattering. For these reasons, it is huge important to be able to predict and measure the angular and specral behaviour of light scattered by complex interferential filters. In this paper, light scattering is calculated for complex filters and take simultaneously account of most parameters: surface roughness, bulk inhomogeneity, cross-correlation coefficients, errors in design, wavelength and scattering angles (normal and polar), polarization… All these variations have become necessary to predict a balance in optical multiplexers and related systems, mainly for space applications. To complete the analysis, a metrological platform dedicated to the multimodal characterization of scattering losses has been involved.

Paper Details

Date Published: 20 November 2017
PDF: 8 pages
Proc. SPIE 10564, International Conference on Space Optics — ICSO 2012, 1056428 (20 November 2017); doi: 10.1117/12.2309105
Show Author Affiliations
Myriam Zerrad, Aix-Marseille Univ. (France)
Michel Lequime, Aix-Marseille Univ. (France)
Claude Amra, Aix-Marseille Univ. (France)

Published in SPIE Proceedings Vol. 10564:
International Conference on Space Optics — ICSO 2012
Bruno Cugny; Errico Armandillo; Nikos Karafolas, Editor(s)

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