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Proceedings Paper

Surface modification of sapphire for IR window application
Author(s): Carl J. McHargue; William B. Snyder Jr.
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Paper Abstract

Two surface modification techniques, a `super polish' (SP), and ion implantation, were evaluated for improving the mechanical performance of sapphire IR window material. Both techniques increased the average strength as measured by 4-point bend tests and were effective in preventing the propagation of surface flaws. Ion implantation improved the reliability at lower stresses more than the SP. Neither process significantly affected the IR transmission. The SP produced a smoother surface as shown by optical scatter measurements.

Paper Details

Date Published: 6 December 1993
PDF: 8 pages
Proc. SPIE 2018, Passive Materials for Optical Elements II, (6 December 1993); doi: 10.1117/12.165222
Show Author Affiliations
Carl J. McHargue, Univ. of Tennessee/Knoxville (United States)
William B. Snyder Jr., Oak Ridge National Lab. (United States)

Published in SPIE Proceedings Vol. 2018:
Passive Materials for Optical Elements II
Gary W. Wilkerson, Editor(s)

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