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Proceedings Paper

Introduction to rugate filter technology
Author(s): Walter E. Johnson; Robert L. Crane
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Paper Abstract

Fundamental descriptive rugate filter parameters and concepts are shown. A simple rugate filter is derived from the Fourier analysis of a high/low refractive index pair used in a conventional non quarter-wave stack design. Progress in both design and fabrication is demonstrated by representative rugate filters which function in either the visible or infrared. Numerous examples are cited to show the utility of refractive index profile tailoring and the advantages of using this technology.

Paper Details

Date Published: 2 November 1993
PDF: 21 pages
Proc. SPIE 2046, Inhomogeneous and Quasi-Inhomogeneous Optical Coatings, (2 November 1993); doi: 10.1117/12.163554
Show Author Affiliations
Walter E. Johnson, Air Force Wright Lab. (United States)
Robert L. Crane, Air Force Wright Lab. (United States)


Published in SPIE Proceedings Vol. 2046:
Inhomogeneous and Quasi-Inhomogeneous Optical Coatings
Jerzy A. Dobrowolski; Pierre G. Verly, Editor(s)

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