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ASTM Selected Technical Papers
Laser Induced Damage in Optical Materials: 1986
By
HE Bennett
HE Bennett
1
Naval Weapons Center
?
China Lake, California 93555
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AH Guenther
AH Guenther
2
Air Force Weapons Laboratory
?
Kirtland Air Force Base, New Mexico 87117
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D Milam
D Milam
3
Lawrence Livermore National Laboratory
?
Livermore, California 94550
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BE Newnam
BE Newnam
4
Los Alamos National Laboratory
?
Los Alamos, New Mexico 87545
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ISBN-10:
0-8031-4477-6
ISBN:
978-0-8031-4477-4
No. of Pages:
725
Publisher:
ASTM International
Publication date:
1988

A knowledge of the thermal properties of optical materials is essential to an understanding of laser-induced damage for long-pulse or continuous-wave irradiation. This area has been long neglected partly because of the difficulty of reliable measurement. An extension of the thin film measurement technique described at the Boulder Laser Damage Conference in 1984 for the measurement of thermal conductivity is presented in this paper. Data are given for bulk Si, SiC, Si/SiC, and SiO2. These results are interpreted using simple theories of inhomogeneous or locally disordered materials. Also indicated are the relationships between local material stress and thermal conductivity, and the temperature dependence of the thermal conductivity for several models of local disorder. Recommendations for further work are also indicated.

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