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Applied Optics

Applied Optics


  • Vol. 10, Iss. 12 — Dec. 1, 1971
  • pp: 2675–2678

Antireflection Coatings for Silicon in the 2.5–50-μm Region

G. H. Sherman and P. D. Coleman  »View Author Affiliations

Applied Optics, Vol. 10, Issue 12, pp. 2675-2678 (1971)

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It has been found that vacuum-deposited films of CsI, AgCl, TlBr, and TlCl are useful as antireflection coatings for silicon over a broad spectral range in the infrared. Measurements performed on a plane-parallel silicon plate coated with various thicknesses of the above materials yield transmittance values ranging from 99% at λ = 2.9 μm to 88% at λ = 27 μm. Experimental details of the coating process and properties of the coatings are discussed.

© 1971 Optical Society of America

Original Manuscript: June 21, 1971
Published: December 1, 1971

G. H. Sherman and P. D. Coleman, "Antireflection Coatings for Silicon in the 2.5–50-μm Region," Appl. Opt. 10, 2675-2678 (1971)

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  1. P. D. Coleman, W. Q. Jeffers, C. J. Johnson, C. F. Wittig, D. L. Keune, “Device Aspects of a Far-Infrared Water Vapor Laser,” IEEE International Electron Devices Meeting, Washington, D.C., October 1967.
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