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:
- Issue Date:
- Research Org.:
- Univ. of California, Oakland, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174762
- Patent Number(s):
- 6705125
- Application Number:
- 09/916,847
- Assignee:
- University Of California, The Regents Of
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
- 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 = {Tue Mar 16 00:00:00 EST 2004},
month = {Tue Mar 16 00:00:00 EST 2004}
}
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