The time development of diffractive scattering of picosecond light pulses from optically induced gratings in absorbing liquids is studied experimentally. Scattering begins quickly (in picoseconds) in saturable absorbers, but the scattering (stimulated thermal scattering) in a nonsaturable absorber requires many nanoseconds to develop. This resolves a discrepancy between theory and a previous experiment on stimulated thermal scattering.
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Richard Scarlet (1971) studied this question.
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