Optical Damage Limitations for Copper Mirrors Used in CO -ICF Laser Systems

SJ Thomas; CR Phipps; RF Harrison

doi:10.1520/STP37014S

SYMPOSIA PAPER Published: 01 October 1981

STP37014S

Optical Damage Limitations for Copper Mirrors Used in CO -ICF Laser Systems

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Because copper optics for CO₂-ICF system applications will be highly stressed, the single-shot damage thresholds which have been reported [1,2], provide only part of the information needed for accurate performance predictions. We report here a performance comparison for copper mirrors finished by different techniques, including single-point diamond turning (SPDT), showing for the first time the relative decrease in 10-μm damage thresholds corresponding to multiple shots, and the loss of reflected beam brightness arising at high fluence levels. We also report the intensity and energy loss due to plasma formation when Cu mirrors are used in air.

Author Information

Thomas, SJ

Phipps, CR

Harrison, RF

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Developed by Committee: F01

Pages: 238–247

DOI: 10.1520/STP37014S

ISBN-EB: 978-0-8031-4820-8

ISBN-13: 978-0-8031-4500-9

Optical Damage Limitations for Copper Mirrors Used in CO -ICF Laser Systems

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