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Laser-Induced Damage in Optical Materials
density waves) present in media at all temperatures. At normal light levels, the amount
of scattering is small. With intense coherent laser light, the rate of scattering can be
so large that the acoustic wave amplitudes increase and the scattered light takes on an
exponential growth. is regime corresponds to the phenomenon known as SBS. e
conversion of incident light into backward scattered light is such that the transmis-
sion of even transparent media can be strongly reduced. e scattered light frequency is
downshied from the incident light by the acoustic frequency.
In materials with no optica ...