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Laser-Induced Damage in Optical Materials
book

Laser-Induced Damage in Optical Materials

by Detlev Ristau
December 2014
Intermediate to advanced content levelIntermediate to advanced
551 pages
23h 57m
English
CRC Press
Content preview from Laser-Induced Damage in Optical Materials
19Laser-Induced Damage by Thermal Effects
Chapter 2
If damage is due to surface melting, then
dT = T
m
− T
a
,
where
T
m
is the temperature at which the surface melts
T
a
is the ambient temperature
It should be noted that the absorption is the sum of the intrinsic absorption and the
surface absorption. It has been proved that the roughness of the surface of a metal mir-
ror aects the absorption. It should be noticed however that the roughness needs to be
measured in terms of the wavelength of the incident laser radiation.
e expression
()
TT C
ma
−κρ
may be regarded as a gure of merit (FOM) for LID
of metal surfaces. It may however be modied by anomalo ...
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Publisher Resources

ISBN: 9781439872161