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Applied Optics

Applied Optics


  • Vol. 35, Iss. 1 — Jan. 1, 1996
  • pp: 102–105

Antireflection coatings designed for two different infrared substrates

J. A. Dobrowolski, Parmjeet Panchhi, and Martin High  »View Author Affiliations

Applied Optics, Vol. 35, Issue 1, pp. 102-105 (1996)

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It is shown that it is possible to design normal-incidence antireflection coatings that simultaneously reduce the reflectance of two different substrates. Although this is at the expense of some deterioration in performance when compared with that of conventional coatings, it can lead to significant time and cost savings in small thin-film production facilities. Numerical examples are presented for ZnS/ZnSe, Si/Ge, and ZnS/Ge substrate pairs. The experimental measurements on one such coating are in good agreement with the calculated performance.

© 1996 Optical Society of America

Original Manuscript: July 3, 1995
Revised Manuscript: September 8, 1995
Published: January 1, 1996

J. A. Dobrowolski, Parmjeet Panchhi, and Martin High, "Antireflection coatings designed for two different infrared substrates," Appl. Opt. 35, 102-105 (1996)

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  1. H. A. Macleod, Thin Film Optical Filters (McGraw-Hill, New York, 1986), Chaps. 2 and 3. [CrossRef]
  2. S. A. Purman, A. V. Tikhonravov, Optics of Multilayer Systems (Editions Frontieres, Gif-sur-Yvette, 1992), Chap. 2.
  3. B. T. Sullivan, J. A. Dobrowolski, “Implementation of a numerical needle method for thin film design,” in Optical Interference Coatings, Vol. 17 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D. C., 1995), pp. 72–74.

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