20 April 1998 Nonlinear UV damage mechanism in polymer thin films observed from below to above damage threshold
Author Affiliations +
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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Semyon Papernov, D. Zaksas, Ansgar W. Schmid, "Nonlinear UV damage mechanism in polymer thin films observed from below to above damage threshold", Proc. SPIE 3244, Laser-Induced Damage in Optical Materials: 1997, (20 April 1998); doi: 10.1117/12.307016; https://doi.org/10.1117/12.307016
PROCEEDINGS
8 PAGES


SHARE
Back to Top