An anomalous (more than ten times) increase in the SRS intensity in liquids under picosecond excitation is detected as ultrasonic exposure on a medium is turned-on. The physical mechanism of the detected phenomenon is discussed. It is presumably associated with the formation of random feedback caused by the formation of inhomogeneities in liquid under ultrasonic excitation.
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Skrabatun et al. (2023) studied this question.
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