Antireflection coating for potassium chloride

Details Antireflection coating for potassium chloride Antireflection coating for potassium chloride

1983-09-16

1985-08-06

McCamish, Marion E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428333, 428336, 428699, 350 16, 350164, 350166, B32B 700, B32B 1504, G02B 526

Patent

active

045335931

ABSTRACT:
An antireflection coating for a potassium chloride substrate has a first arsenic trisulfide (As.sub.2 S.sub.3) layer, a lead fluoride (PbF.sub.2) layer and a second arsenic trisulfide (As.sub.2 S.sub.3) layer which are formed on at least one major surface of the potassium chloride (KCl) substrate in the order named. The antireflection coating withstands to irradiate of a high-power carbon dioxide gas laser. The antireflection coating also has good optical characteristics and moisture resistance.

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J. E. Rudisill, M. Braunstein, and A. I. Braunstein, Optical Coatings for High Energy ZnSe Laser Windows, pp. 2075, 2076, Table 1.
A. D. Baer, T. M. Donovan, A. K. Green and G. Turner, Alternate Materials for Infrared Window Coatings, NBS. Special Publication 462, pp. 214, 216, Table 2.
A. D. McLachlan and W. E. K. Gibbs, A New Chalcogenide-Glass Antireflection Coating for KC, Laser Induced Damage in Optical Materials, NBS Special Publication 509, pp. 222, 223, Table 1.
R. C. Weast, Editor: Handbook of Chemistry and Physics, 50th Edition, published by the Chemical Rubber Co.
M. Braunstein: Infrared Coatings for High Energy Laser Reflectors and Windows, Proceedings of the Society of Photo-Optical Instrumental Engineers, vol. 140, Optical Coatings II, p. 85.

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