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Initiation Identification in Fused Silica 355-nm Optics [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 2002.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
9p : digital, PDF file
Additional Creators:
Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Thermo-mechanical surface damage initiation and growth in fused-silica 3ω (355nm) optics are important performance and cost issues for high-power lasers (fluences of 4-14 J/cm²) in the few ns pulse length regime. We are working to characterize and identify the extrinsic origins of damage initiation; impurities, particulates, and manufacturing defects. We have performed a materials characterization survey approach using transmission electron microscopy to identify the chemistry and morphology of particles, and structural defects. TEM offers high chemical or elemental specificity and small analytical spot size yielding complementary materials characterization data and powerful clues to manufacturing improvements. We will report on our characterization of the near surface of one commercially manufactures fused silica optic, where the results indicate both the efficacy and potential value of this approach.
Report Numbers:
E 1.99:ucrl-jc-144296
ucrl-jc-144296
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
01/04/2002.
"ucrl-jc-144296"
XXXIII Annual Symposium on Optical Materials for High Power Lasers, Boulder, CO, Oct 01 - Oct 03, 2001.
Wall, M; Fluss, M J; Plitzko, J.
Funding Information:
W-7405-ENG-48
View MARC record | catkey: 14740274