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Proceedings Paper

Rugate filters obtained by a mechanical modulation technique
Author(s): Luc Nouvelot; Laurent Jouanet; Aime Perrin
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Paper 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.

Paper Details

Date Published: 4 March 1993
PDF: 9 pages
Proc. SPIE 1782, Thin Films for Optical Systems, (4 March 1993); doi: 10.1117/12.141059
Show Author Affiliations
Luc Nouvelot, CEA-LETI (France)
Laurent Jouanet, CEA-LETI (France)
Aime Perrin, CEA-LETI (France)

Published in SPIE Proceedings Vol. 1782:
Thin Films for Optical Systems
Karl H. Guenther, Editor(s)

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