Title

Effects Of Ionizing Radiation On Laser-Induced Damage In Sio2

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE Trans. Antennas Propag.

Keywords

Instruments & Instrumentation; Nuclear Science & Technology; Physics; Atomic; Molecular & Chemical; Physics; Nuclear

Abstract

The effects of radiation damage on bulk laser-induced damage in SiO2 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 108 rad of γ -radiation. The decrease in breakdown threshold for irradiated SiO2 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 Title

IEEE Transactions on Antennas and Propagation

Volume

32

Issue/Number

1-4

Publication Date

1-1-1988

Document Type

Article

Language

English

First Page

311

Last Page

314

WOS Identifier

WOS:A1988N937400061

ISSN

0168-583X

Share

COinS