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Proceedings Paper

Long-term effects of pulsed KrF laser radiation on crystalline and amorphous SiO2
Author(s): Douglas J. Krajnovich; Iraj K. Pour
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Paper Abstract

At the 1992 Boulder DAmage Symposium, we reported test results for 6 fused silica glass types exposed to millions of KrF laser pulses at a fluence of 500 mJ/cm2 and a pulse repetition rate of 300 Hz. The peculiar results and the big variations between glass types (`slow' relaxing vs. `fast' relaxing glass families) were interpreted as being due to subtle differences in the glass microstructure induced by the homogenization and heat treatments, but no detailed explanation could be offered. As a small step toward improving our understanding, we have expanded our studies to include four additional glass types: Suprasil 300 (S300) and Suprasil 311 (S311) from Heraeus, and conventional 7940 and a new Excimer-grade fused silica from Corning.

Paper Details

Date Published: 28 July 1994
PDF: 14 pages
Proc. SPIE 2114, Laser-Induced Damage in Optical Materials: 1993, (28 July 1994); doi: 10.1117/12.180923
Show Author Affiliations
Douglas J. Krajnovich, IBM Almaden Research Ctr. (United States)
Iraj K. Pour, IBM Almaden Research Ctr. (United States)

Published in SPIE Proceedings Vol. 2114:
Laser-Induced Damage in Optical Materials: 1993
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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