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Title: Laser-driven formation of a high-pressure phase in amorphous silica

Abstract

A combination of electron diffraction and infrared reflectance measurements shows that synthetic silica transforms partially into stishovite under high-intensity (GW/cm2) laser irradiation, probably by the formation of a dense ionized plasma above the silica surface. During the transformation the silicon coordination changes from four-fold to six-fold and the silicon-oxygen bond changes from mostly covalent to mostly ionic, such that optical properties of the transformed material differ significantly from those of the original glass. This phase transformation offers one suitable mechanism by which laser-induced damage grows catastrophically once initiated, thereby dramatically shortening the service lifetime of optics used for high-power photonics applications such as inertial confinement fusion.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director, Office of Science. Office of Basic Energy Sciences. Materials Science and Engineering Division (US)
OSTI Identifier:
821024
Report Number(s):
LBNL-50431
R&D Project: 458121; TRN: US200407%%142
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Journal Article
Journal Name:
Nature Materials (Letters)
Additional Journal Information:
Journal Volume: 2; Other Information: Journal Publication Date: Dec. 1, 2003; PBD: 31 May 2002
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ELECTRON DIFFRACTION; GLASS; INERTIAL CONFINEMENT; IRRADIATION; LASERS; LIFETIME; OPTICAL PROPERTIES; OPTICS; PHASE TRANSFORMATIONS; PLASMA; SILICA; SILICON; STISHOVITE; TRANSFORMATIONS

Citation Formats

Salleo, Alberto, Taylor, Seth T, Martin, Michael C, Panero, Wendy R, Jeanloz, Raymond, Genin, Francois Y, and Sands, Timothy. Laser-driven formation of a high-pressure phase in amorphous silica. United States: N. p., 2002. Web.
Salleo, Alberto, Taylor, Seth T, Martin, Michael C, Panero, Wendy R, Jeanloz, Raymond, Genin, Francois Y, & Sands, Timothy. Laser-driven formation of a high-pressure phase in amorphous silica. United States.
Salleo, Alberto, Taylor, Seth T, Martin, Michael C, Panero, Wendy R, Jeanloz, Raymond, Genin, Francois Y, and Sands, Timothy. 2002. "Laser-driven formation of a high-pressure phase in amorphous silica". United States. https://www.osti.gov/servlets/purl/821024.
@article{osti_821024,
title = {Laser-driven formation of a high-pressure phase in amorphous silica},
author = {Salleo, Alberto and Taylor, Seth T and Martin, Michael C and Panero, Wendy R and Jeanloz, Raymond and Genin, Francois Y and Sands, Timothy},
abstractNote = {A combination of electron diffraction and infrared reflectance measurements shows that synthetic silica transforms partially into stishovite under high-intensity (GW/cm2) laser irradiation, probably by the formation of a dense ionized plasma above the silica surface. During the transformation the silicon coordination changes from four-fold to six-fold and the silicon-oxygen bond changes from mostly covalent to mostly ionic, such that optical properties of the transformed material differ significantly from those of the original glass. This phase transformation offers one suitable mechanism by which laser-induced damage grows catastrophically once initiated, thereby dramatically shortening the service lifetime of optics used for high-power photonics applications such as inertial confinement fusion.},
doi = {},
url = {https://www.osti.gov/biblio/821024}, journal = {Nature Materials (Letters)},
number = ,
volume = 2,
place = {United States},
year = {Fri May 31 00:00:00 EDT 2002},
month = {Fri May 31 00:00:00 EDT 2002}
}