Year: 1975
Type: article
Abstract: A theoretical analysis is made of the excitation of sound in a liquid as a result of absorption of timemodulated optical radiation. Attention is concentrated on steady-state generation of monochromatic sound resulting from quasicontinuous irradiation of the liquid. The patterns established in the far and near acoustic wave zones are considered; definite advantages of the far-zone generation are pointed out. The optimal modulation frequency ensuring the maximum amplitude of the acoustic wave in the far zone (for given laser radiation power) is considered. A statistical analysis is made of the influence of random inhomogeneities in the transverse distribution of the intensity of a laser beam. Numerical estimates are obtained for the generation of sound in water by CO 2 and YAG laser radiations.
Authors: A I Bozhkov, F V Bunkin
Institution: Academy of Sciences of the Soviet Union
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2004365285