Rugate filters obtained by a mechanical modulation technique

Luc Nouvelot; Laurent Jouanet; Aime Perrin

doi:10.1117/12.141059

4 March 1993 Rugate filters obtained by a mechanical modulation technique

Luc Nouvelot, Laurent Jouanet, Aime Perrin

Proceedings Volume 1782, Thin Films for Optical Systems; (1993) https://doi.org/10.1117/12.141059
Event: Optical Systems Design '92, 1992, Berlin, Germany

Abstract

Gradient index coatings, or rugate filters, may be of interest to more easily achieve optical properties such as `notch' filters that are difficult to reach with classical multilayers. Rugate coatings have been fabricated using a new evaporation system. This system uses two coupled masking devices to control the rate of two sources kept at constant temperatures. Two couples of materials were studied and sine wave index profile rugate filters were fabricated.

Citation Download Citation

Luc Nouvelot, Laurent Jouanet, and Aime Perrin "Rugate filters obtained by a mechanical modulation technique", Proc. SPIE 1782, Thin Films for Optical Systems, (4 March 1993); https://doi.org/10.1117/12.141059

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