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U.S. Department of Energy
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Effect of n on 1 laser treatment on damage threshold of selected optical coating

Conference ·
OSTI ID:6483113
Laser damage threshold improvement was observed in selected thin film coatings that were repeatedly irradiated by 1.06..mu..m, 16 nsec pulse emitted by a laser with 30 Hz repetition rate. Each sample was first irradiated for one minute at separate sites (1 on 1 testing) to determine the laser damage threshold of the thin film. A separate site was multiply irradiated (n on 1 testing) using a pulse fluence that initially was arbitrarily low, then subsequently raised in a step-wise fashion until damage occurred. Results indicate a significant increase in laser damage threshold of some thin film coatings due to this treatment. 5 refs., 7 figs.
Research Organization:
Lawrence Livermore National Lab., CA (USA)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
6483113
Report Number(s):
UCRL-100617; CONF-8810296-4; ON: DE89008830
Country of Publication:
United States
Language:
English