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Title: Reduction of damage initiation density in fused silica optics via UV laser conditioning

Abstract

The present invention provides a method for reducing the density of sites on the surface of fused silica optics that are prone to the initiation of laser-induced damage, resulting in optics which have far fewer catastrophic defects and are better capable of resisting optical deterioration upon exposure for a long period of time to a high-power laser beam having a wavelength of about 360 nm or less. The initiation of laser-induced damage is reduced by conditioning the optic at low fluences below levels that normally lead to catastrophic growth of damage. When the optic is then irradiated at its high fluence design limit, the concentration of catastrophic damage sites that form on the surface of the optic is greatly reduced.

Inventors:
; ; ;
Publication Date:
Research Org.:
The Regents of the University Of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174762
Patent Number(s):
6,705,125
Application Number:
09/916,847
Assignee:
University Of California, The Regents Of
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Peterson, John E., Maricle, Stephen M., Brusasco, Raymond M., and Penetrante, Bernardino M. Reduction of damage initiation density in fused silica optics via UV laser conditioning. United States: N. p., 2004. Web.
Peterson, John E., Maricle, Stephen M., Brusasco, Raymond M., & Penetrante, Bernardino M. Reduction of damage initiation density in fused silica optics via UV laser conditioning. United States.
Peterson, John E., Maricle, Stephen M., Brusasco, Raymond M., and Penetrante, Bernardino M. Tue . "Reduction of damage initiation density in fused silica optics via UV laser conditioning". United States. https://www.osti.gov/servlets/purl/1174762.
@article{osti_1174762,
title = {Reduction of damage initiation density in fused silica optics via UV laser conditioning},
author = {Peterson, John E. and Maricle, Stephen M. and Brusasco, Raymond M. and Penetrante, Bernardino M.},
abstractNote = {The present invention provides a method for reducing the density of sites on the surface of fused silica optics that are prone to the initiation of laser-induced damage, resulting in optics which have far fewer catastrophic defects and are better capable of resisting optical deterioration upon exposure for a long period of time to a high-power laser beam having a wavelength of about 360 nm or less. The initiation of laser-induced damage is reduced by conditioning the optic at low fluences below levels that normally lead to catastrophic growth of damage. When the optic is then irradiated at its high fluence design limit, the concentration of catastrophic damage sites that form on the surface of the optic is greatly reduced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {3}
}

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