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Proceedings Paper

Nonlinear UV damage mechanism in polymer thin films observed from below to above damage threshold
Author(s): Semyon Papernov; D. Zaksas; Ansgar W. Schmid
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Paper Abstract

In thin cellulose acetate films, 351-nm laser damage at subnanosecond pulse length can be demonstrated to be driven solely by a slow-buildup-time, transverse stimulated scattering process in which the transverse-scattered wave exhibits neither Raman nor Brillouin spectral shifts. Above threshold, the damage morphology exhibits an orientational selectivity that coincides with the scattered-wave orientation observable down to fluences 20 percent below the damage threshold. The physics of the scattering process remains to be identified.

Paper Details

Date Published: 20 April 1998
PDF: 8 pages
Proc. SPIE 3244, Laser-Induced Damage in Optical Materials: 1997, (20 April 1998); doi: 10.1117/12.307016
Show Author Affiliations
Semyon Papernov, Univ. of Rochester (United States)
D. Zaksas, Univ. of Rochester (United States)
Ansgar W. Schmid, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 3244:
Laser-Induced Damage in Optical Materials: 1997
Gregory J. Exarhos; Arthur H. Guenther; Mark R. Kozlowski; M. J. Soileau, Editor(s)

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