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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 19 — Jul. 1, 1998
  • pp: 4239–4244

Design and manufacture of low-absorption ZnS–YF3 antireflection coatings in the 3.5–16-μm spectral range

Frederic Lemarquis, Gerard Marchand, and Claude Amra  »View Author Affiliations


Applied Optics, Vol. 37, Issue 19, pp. 4239-4244 (1998)
http://dx.doi.org/10.1364/AO.37.004239


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Abstract

Broadband antireflection coatings on ZnSe substrates are designed and manufactured in the 3.5–16-μm IR range. The thin-film materials are YF3 and ZnS produced by electron-beam deposition. To reach optimal performances to as great as 16 μm, we performed an accurate determination of complex indices, taking into account dispersion laws and absorption due to water within layers. With this knowledge, designs are optimized and absorption is reduced at 16 μm.

© 1998 Optical Society of America

OCIS Codes
(010.7340) Atmospheric and oceanic optics : Water
(260.2030) Physical optics : Dispersion
(300.1030) Spectroscopy : Absorption
(310.0310) Thin films : Thin films
(310.1210) Thin films : Antireflection coatings
(310.1620) Thin films : Interference coatings

History
Original Manuscript: October 16, 1997
Revised Manuscript: March 23, 1998
Published: July 1, 1998

Citation
Frederic Lemarquis, Gerard Marchand, and Claude Amra, "Design and manufacture of low-absorption ZnS–YF3 antireflection coatings in the 3.5–16-μm spectral range," Appl. Opt. 37, 4239-4244 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-19-4239

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