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Title: Structural Modifications in Fused Silica Due to Laser Damage Induced Shock Compression

Abstract

High power laser pulses can produce damage in high quality fused silica optics that can lead to its eventual obscuration and failure. Current models suggest the initiation of a plasma detonation due to absorbing initiators and defects, leading to the formation of shock waves. Recent experiments have found a densified layer at the bottom of damage sites, as evidence of the laser-damage model. We have studied the propagation of shock waves through fused silica using molecular dynamics. These simulations show drastic modifications in the structure and topology of the network, in agreement with experimental observations.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15002012
Report Number(s):
UCRL-JC-144223
Journal ID: ISSN 0277-786X; TRN: US200408%%32
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Journal Volume: 4679; Conference: Annual Symposium on Optical Materials for High Power Laser Boulder Damage Symposium, Boulder, CO (US), 10/01/2001--10/03/2001; Other Information: PBD: 5 Dec 2001
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPRESSION; DEFECTS; EXPLOSIONS; LASERS; MODIFICATIONS; OPTICS; PLASMA; SHOCK WAVES; SILICA; TOPOLOGY

Citation Formats

Kubota, A, Davila, L, Caturla, M J, Stolken, J S, Sadigh, B, Quong, A, Rubenchik, A, and Feit, M D. Structural Modifications in Fused Silica Due to Laser Damage Induced Shock Compression. United States: N. p., 2001. Web. doi:10.1117/12.461717.
Kubota, A, Davila, L, Caturla, M J, Stolken, J S, Sadigh, B, Quong, A, Rubenchik, A, & Feit, M D. Structural Modifications in Fused Silica Due to Laser Damage Induced Shock Compression. United States. https://doi.org/10.1117/12.461717
Kubota, A, Davila, L, Caturla, M J, Stolken, J S, Sadigh, B, Quong, A, Rubenchik, A, and Feit, M D. Wed . "Structural Modifications in Fused Silica Due to Laser Damage Induced Shock Compression". United States. https://doi.org/10.1117/12.461717. https://www.osti.gov/servlets/purl/15002012.
@article{osti_15002012,
title = {Structural Modifications in Fused Silica Due to Laser Damage Induced Shock Compression},
author = {Kubota, A and Davila, L and Caturla, M J and Stolken, J S and Sadigh, B and Quong, A and Rubenchik, A and Feit, M D},
abstractNote = {High power laser pulses can produce damage in high quality fused silica optics that can lead to its eventual obscuration and failure. Current models suggest the initiation of a plasma detonation due to absorbing initiators and defects, leading to the formation of shock waves. Recent experiments have found a densified layer at the bottom of damage sites, as evidence of the laser-damage model. We have studied the propagation of shock waves through fused silica using molecular dynamics. These simulations show drastic modifications in the structure and topology of the network, in agreement with experimental observations.},
doi = {10.1117/12.461717},
url = {https://www.osti.gov/biblio/15002012}, journal = {},
issn = {0277-786X},
number = ,
volume = 4679,
place = {United States},
year = {2001},
month = {12}
}

Conference:
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