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Effects of ionizing radiation on laser-induced damage in SiO/sub 2/

Abstract

The effects of radiation damage on bulk laser-induced damage in SiO/sub 2/ were investigated. Samples studied included Spectrasil A, B, and WF (water free). Measurements of laser-induced breakdown were conducted with 532 and 1064 nm laser pulses of approximately 20 ns duration. Reductions of up to 40% in the laser-induced breakdown threshold were observed at 532 nm for samples exposed to 10/sup 8/ rad of ..gamma..-radiation. The decrease in breakdown threshold for irradiated SiO/sub 2/ samples at 532 nm was found to be proportional to the linear absorption of the specimen at 266 nm. These results are in good agreement with a proposed model which suggests that two-photon absorption initiated avalanche process is responsible for laser-induced breakdown for these materials.
Publication Date:
May 01, 1988
Product Type:
Conference
Report Number:
CONF-870783-
Reference Number:
NLN-88-005042; EDB-88-162355
Resource Relation:
Journal Name: Nucl. Instrum. Methods Phys. Res., Sect. A.; (Netherlands); Journal Volume: 32:1-4; Conference: Radiation effects in insulators-4 conference, Lyon, France, 6 Jul 1987
Subject:
36 MATERIALS SCIENCE; SILICON OXIDES; DAMAGE; PHYSICAL RADIATION EFFECTS; ABSORPTION SPECTRA; BREAKDOWN; ELECTRIC FIELDS; EXPERIMENTAL DATA; GAMMA RADIATION; IONIZING RADIATIONS; LASER RADIATION; CHALCOGENIDES; DATA; ELECTROMAGNETIC RADIATION; INFORMATION; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; RADIATION EFFECTS; RADIATIONS; SILICON COMPOUNDS; SPECTRA; 360605* - Materials- Radiation Effects
OSTI ID:
6834283
Research Organizations:
University of Central Florida, Orlando (USA). Center for Research in Electro-Optics and Lasers
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NIMAE
Submitting Site:
NLN
Size:
Pages: 311-314
Announcement Date:

Citation Formats

Soileau, M J, Mansour, N, Canto, E, and Griscom, D L. Effects of ionizing radiation on laser-induced damage in SiO/sub 2/. Netherlands: N. p., 1988. Web.
Soileau, M J, Mansour, N, Canto, E, & Griscom, D L. Effects of ionizing radiation on laser-induced damage in SiO/sub 2/. Netherlands.
Soileau, M J, Mansour, N, Canto, E, and Griscom, D L. 1988. "Effects of ionizing radiation on laser-induced damage in SiO/sub 2/." Netherlands.
@misc{etde_6834283,
title = {Effects of ionizing radiation on laser-induced damage in SiO/sub 2/}
author = {Soileau, M J, Mansour, N, Canto, E, and Griscom, D L}
abstractNote = {The effects of radiation damage on bulk laser-induced damage in SiO/sub 2/ were investigated. Samples studied included Spectrasil A, B, and WF (water free). Measurements of laser-induced breakdown were conducted with 532 and 1064 nm laser pulses of approximately 20 ns duration. Reductions of up to 40% in the laser-induced breakdown threshold were observed at 532 nm for samples exposed to 10/sup 8/ rad of ..gamma..-radiation. The decrease in breakdown threshold for irradiated SiO/sub 2/ samples at 532 nm was found to be proportional to the linear absorption of the specimen at 266 nm. These results are in good agreement with a proposed model which suggests that two-photon absorption initiated avalanche process is responsible for laser-induced breakdown for these materials.}
journal = {Nucl. Instrum. Methods Phys. Res., Sect. A.; (Netherlands)}
volume = {32:1-4}
place = {Netherlands}
year = {1988}
month = {May}
}