Method and system for processing optical materials for high power laser systems
Abstract
A method of determining conditioning pulse parameters for an optical element includes directing a pump pulse to impinge on the optical element and directing a probe pulse to impinge on the optical element. The method also includes determining a first time associated with an onset of electronic excitation leading to formation of an absorbing region of the optical element and determining a second time associated with expansion of the absorbing region of the optical element. The method further includes defining a turn-off time for a conditioning pulse between the first time and the second time. According to embodiments of the present invention, pulse shaping of the conditioning pulse enables laser conditioning of optical elements to achieve improvements in their laser induced damage threshold.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1169102
- Patent Number(s):
- 8945440
- Application Number:
- 13/240,980
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Demos, Stavros G, Raman, Rajesh, and Negres, Raluca A. Method and system for processing optical materials for high power laser systems. United States: N. p., 2015.
Web.
Demos, Stavros G, Raman, Rajesh, & Negres, Raluca A. Method and system for processing optical materials for high power laser systems. United States.
Demos, Stavros G, Raman, Rajesh, and Negres, Raluca A. Tue .
"Method and system for processing optical materials for high power laser systems". United States. https://www.osti.gov/servlets/purl/1169102.
@article{osti_1169102,
title = {Method and system for processing optical materials for high power laser systems},
author = {Demos, Stavros G and Raman, Rajesh and Negres, Raluca A},
abstractNote = {A method of determining conditioning pulse parameters for an optical element includes directing a pump pulse to impinge on the optical element and directing a probe pulse to impinge on the optical element. The method also includes determining a first time associated with an onset of electronic excitation leading to formation of an absorbing region of the optical element and determining a second time associated with expansion of the absorbing region of the optical element. The method further includes defining a turn-off time for a conditioning pulse between the first time and the second time. According to embodiments of the present invention, pulse shaping of the conditioning pulse enables laser conditioning of optical elements to achieve improvements in their laser induced damage threshold.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 03 00:00:00 EST 2015},
month = {Tue Feb 03 00:00:00 EST 2015}
}
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journal, January 2011
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Role of phase instabilities in the early response of bulk fused silica during laser-induced breakdown
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