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Proceedings Paper

Rugate and discrete hybrid filter designs
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Paper Abstract

The combination of discrete and Rugate filter design techniques can provide unique design advantages. Rugate filter deposition techniques can be applied to discrete, and square wave based designs as easily as they are applied to sine wave index profiles. Just as apodization reduces sidelobes about a Rugate stop-band, apodization reduces sidelobes of a square wave filter. This paper builds on these observations to present designs which superimpose sine and square wave profiles to produce a more efficient use of the design space. Techniques are presented for moving back and forth between discrete and Rugate designs to achieve reduced film thickness, more efficient use of index contrast, and harmonic suppression.

Paper Details

Date Published: 1 October 1997
PDF: 11 pages
Proc. SPIE 3133, Optical Thin Films V: New Developments, (1 October 1997); doi: 10.1117/12.290199
Show Author Affiliations
Thomas D. Rahmlow Jr., Rugate Technologies, Inc. (United States)
Jeanne E. Lazo-Wasem, Rugate Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 3133:
Optical Thin Films V: New Developments
Randolph L. Hall, Editor(s)

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