Infrared absorption signature on laser-damaged optical thin films
Optics Letters, Vol. 34, Issue 14, pp. 2162-2164 (2009)
http://dx.doi.org/10.1364/OL.34.002162
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Abstract
Optical coating degradation under laser irradiation can take several forms. Perhaps the most common that is not due to particulates is thermal breakdown, caused by heating of the coating to a catastrophic failure induced by local melting, delamination, evaporation, or some other change. We demonstrate that micromachined dielectric membranes show strong differences in their hydroxyl signatures as measured by Fourier-transform IR spectroscopy. The changes correspond to regions of high fluence
© 2009 Optical Society of America
OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(140.3440) Lasers and laser optics : Laser-induced breakdown
(220.4000) Optical design and fabrication : Microstructure fabrication
(300.1030) Spectroscopy : Absorption
(310.6870) Thin films : Thin films, other properties
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: May 15, 2009
Manuscript Accepted: May 29, 2009
Published: July 9, 2009
Citation
Sangho S. Kim, Nicholas T. Gabriel, Wing S. Chan, and Joseph J. Talghader, "Infrared absorption signature on laser-damaged optical thin films," Opt. Lett. 34, 2162-2164 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-14-2162
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