skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System and method for laser-based, non-evaporative repair of damage sites in the surfaces of fused silica optics

Abstract

A method for repairing a damage site on a surface of an optical material is disclosed. The method may involve focusing an Infrared (IR) laser beam having a predetermined wavelength, with a predetermined beam power, to a predetermined full width ("F/W") 1/e.sup.2 diameter spot on the damage site. The focused IR laser beam is maintained on the damage site for a predetermined exposure period corresponding to a predetermined acceptable level of downstream intensification. The focused IR laser beam heats the damage site to a predetermined peak temperature, which melts and reflows material at the damage site of the optical material to create a mitigated site.

Inventors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1322102
Patent Number(s):
9,434,645
Application Number:
13/707,053
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Dec 06
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Adams, John J., Bolourchi, Masoud, Bude, Jeffrey D., Guss, Gabriel M., Jarboe, Jeffery A., Matthews, Manyalibo J., Nostrand, Michael C, and Wegner, Paul J. System and method for laser-based, non-evaporative repair of damage sites in the surfaces of fused silica optics. United States: N. p., 2016. Web.
Adams, John J., Bolourchi, Masoud, Bude, Jeffrey D., Guss, Gabriel M., Jarboe, Jeffery A., Matthews, Manyalibo J., Nostrand, Michael C, & Wegner, Paul J. System and method for laser-based, non-evaporative repair of damage sites in the surfaces of fused silica optics. United States.
Adams, John J., Bolourchi, Masoud, Bude, Jeffrey D., Guss, Gabriel M., Jarboe, Jeffery A., Matthews, Manyalibo J., Nostrand, Michael C, and Wegner, Paul J. Tue . "System and method for laser-based, non-evaporative repair of damage sites in the surfaces of fused silica optics". United States. doi:. https://www.osti.gov/servlets/purl/1322102.
@article{osti_1322102,
title = {System and method for laser-based, non-evaporative repair of damage sites in the surfaces of fused silica optics},
author = {Adams, John J. and Bolourchi, Masoud and Bude, Jeffrey D. and Guss, Gabriel M. and Jarboe, Jeffery A. and Matthews, Manyalibo J. and Nostrand, Michael C and Wegner, Paul J.},
abstractNote = {A method for repairing a damage site on a surface of an optical material is disclosed. The method may involve focusing an Infrared (IR) laser beam having a predetermined wavelength, with a predetermined beam power, to a predetermined full width ("F/W") 1/e.sup.2 diameter spot on the damage site. The focused IR laser beam is maintained on the damage site for a predetermined exposure period corresponding to a predetermined acceptable level of downstream intensification. The focused IR laser beam heats the damage site to a predetermined peak temperature, which melts and reflows material at the damage site of the optical material to create a mitigated site.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 06 00:00:00 EDT 2016},
month = {Tue Sep 06 00:00:00 EDT 2016}
}

Patent:

Save / Share: