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Proceedings Paper

Excimer-laser induced degradation in bulk-fused silica
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Paper Abstract

Excimer laser irradiation of fused silica is shown to induce gradual changes in the material, which affect its optical properties. These changes include visible fluorescence, formation of absorption bands at approximately 215 nm (E' centers), and increases in density and index of refraction. The magnitude of these effects varies initially as the square of the laser fluence and linearly with the number of pulses, indicating that they are the result of a two- photon absorption process. Pre-or post-irradiation treatments can be used to reduce the amount of laser induced degradation, especially the formation of color centers.

Paper Details

Date Published: 24 June 1993
PDF: 7 pages
Proc. SPIE 1848, 24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992, (24 June 1993); doi: 10.1117/12.147397
Show Author Affiliations
Mordechai Rothschild, Lincoln Lab./MIT (United States)
Jan H. C. Sedlacek, Lincoln Lab./MIT (United States)


Published in SPIE Proceedings Vol. 1848:
24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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