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The hydrodynamic processes occurring in water under the action of pulsed laser radiation with a power of 20 W, wavelength of 1.94 μm, and a pulse duration of 100 ns were investigated. Such radiation leads the excitation of jet flows in water, as well as microbubbles and broadband acoustic vibrations. It was established that the main energy of these vibrations lies within the range of 10–15 kHz; they...
We investigate the specific features of acoustic signals generated in water under the action of cw laser radiation with a power of 3 W at wavelengths of 0.97, 1.56, and 1.9 μm, emerging from an optical fiber. It is established that when a fiber tip without an absorbing coating is used, quasi-periodic pulse signals are generated according to the thermocavitation mechanism due to the formation and collapse...
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