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Proceedings Paper

Single crystal and polycrystalline CVD diamond for demanding optical applications
Author(s): J. M. Dodson; J. R. Brandon; H. K. Dhillon; I. Friel; S. L. Geoghegan; T. P. Mollart; P. Santini; G. A. Scarsbrook; D. J. Twitchen; A. J. Whitehead; J. J. Wilman; H. de Wit
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Paper Abstract

Diamond's extremely wide transparency, combined with its other exceptional properties including hardness, strength and thermal conductivity make it a desirable material for optical windows. Polycrystalline diamond grown by chemical vapour deposition (CVD) has become the preferred window material for high power CO2 laser systems since its development in the 1990s. The range and availability of diamond materials is expanding, and in recent years has been extended to include CVD single crystal diamond. This paper reviews the quality of these materials, looking at optical scatter and absorption around 1 and 10 microns, along with their thermal and mechanical properties. We also discuss selection of appropriate grades and how they may best be integrated into demanding optical applications.

Paper Details

Date Published: 20 May 2011
PDF: 11 pages
Proc. SPIE 8016, Window and Dome Technologies and Materials XII, 80160L (20 May 2011); doi: 10.1117/12.885188
Show Author Affiliations
J. M. Dodson, Element Six Ltd. (United Kingdom)
J. R. Brandon, Element Six Ltd. (United Kingdom)
H. K. Dhillon, Element Six Ltd. (United Kingdom)
I. Friel, Element Six Ltd. (United Kingdom)
S. L. Geoghegan, Element Six Ltd. (United Kingdom)
T. P. Mollart, Element Six Ltd. (United Kingdom)
P. Santini, Element Six, Cambridge Innovation Ctr. (United States)
G. A. Scarsbrook, Element Six Ltd. (United Kingdom)
D. J. Twitchen, Element Six Ltd. (United Kingdom)
A. J. Whitehead, Element Six Ltd. (United Kingdom)
J. J. Wilman, Element Six Ltd. (United Kingdom)
H. de Wit, Element Six N.V. (Netherlands)

Published in SPIE Proceedings Vol. 8016:
Window and Dome Technologies and Materials XII
Randal W. Tustison, Editor(s)

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