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Stimulated brillouin scattering as a function of bandwidth

Conference ·
OSTI ID:149612
Stimulated Brillouin scattering (SBS) is a non-linear optical effect which has been of interest to laser scientists for many years. SBS can be extremely useful as a phase conjugator, but it can also cause damage in large lasers by scattering light transversely to the beam. In this experiment, transient SBS has been generated in two materials with a frequency modulated, 13-ns pulse from the OSL Nd:YLF laser, and then compared to SBS generated in the same materials with a narrowband pulse of equal length. Also investigated are the effects of variation of focal volume. Results show that the transient threshold is higher for the broadband pulse than for the narrowband, and that the temporal shape of the pulse transmitted through the cell varies with bandwidth. We also find that the spectrum of the scattered pulse is different from that of the input pulse.
Research Organization:
Lawrence Livermore National Lab., CA (United States)
OSTI ID:
149612
Report Number(s):
UCRL-ID--114972-1; CONF-9312109--Absts.; ON: DE95012452
Country of Publication:
United States
Language:
English

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