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Proceedings Paper

Structural modifications in fused silica due to laser-damage-induced shock compression
Author(s): Alison Kubota; Maria-Jose Caturla; Lilian Davila; James Stolken; Babak Sadigh; A. Quong; Alexander M. Rubenchik; Michael D. Feit
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Paper 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.

Paper Details

Date Published: 9 April 2002
PDF: 9 pages
Proc. SPIE 4679, Laser-Induced Damage in Optical Materials: 2001, (9 April 2002); doi: 10.1117/12.461717
Show Author Affiliations
Alison Kubota, Lawrence Livermore National Lab. (United States)
Maria-Jose Caturla, Lawrence Livermore National Lab. (United States)
Lilian Davila, Lawrence Livermore National Lab. (United States)
James Stolken, Lawrence Livermore National Lab. (United States)
Babak Sadigh, Lawrence Livermore National Lab. (United States)
A. Quong, Lawrence Livermore National Lab. (United States)
Alexander M. Rubenchik, Lawrence Livermore National Lab. (United States)
Michael D. Feit, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 4679:
Laser-Induced Damage in Optical Materials: 2001
Gregory J. Exarhos; Arthur H. Guenther; Keith L. Lewis; M. J. Soileau; Christopher J. Stolz, Editor(s)

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