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Proceedings Paper

Bulk diamond for IR/rf windows and domes
Author(s): Charles B. Willingham; Thomas M. Hartnett; Richard P. Miller; Robert B. Hallock
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Paper Abstract

Microwave plasma deposition techniques for preparing optical quality, uniformly thick diamond plates and domes continue to be actively developed. Thicknesses greater than two millimeters have been demonstrated for optical quality dome blanks, and excellent optical quality has been obtained for five inch diameter plates. Presently achievable CVD diamond is the strongest LWIR-transparent material and is impervious to thermal shock. It can be used in its present form for prototype window preparation. Nevertheless, further strength improvement is required for CVD diamond for applications requiring resistance to particle (e.g. raindrop) impacts. Fracture strength improvement is a primary objective of diamond technology development. Continued development of optical diamond technology must also emphasize increased deposition rates for the highest quality material and optimized polishing processes to assure its place as a cost effective optical material for high performance applications.

Paper Details

Date Published: 27 June 1997
PDF: 9 pages
Proc. SPIE 3060, Window and Dome Technologies and Materials V, (27 June 1997); doi: 10.1117/12.277040
Show Author Affiliations
Charles B. Willingham, Raytheon Co. (United States)
Thomas M. Hartnett, Raytheon Co. (United States)
Richard P. Miller, Raytheon Co. (United States)
Robert B. Hallock, Raytheon Co. (United States)

Published in SPIE Proceedings Vol. 3060:
Window and Dome Technologies and Materials V
Randal W. Tustison, Editor(s)

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