Thermoacoustic radiation of sound by a moving laser source
作者:
Yves H. Berthelot,
Ilene J. Busch‐Vishniac,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1987)
卷期:
Volume 81,
issue 2
页码: 317-327
ISSN:0001-4966
年代: 1987
DOI:10.1121/1.394952
出版商: Acoustical Society of America
关键词: LASER RADIATION;DIRECTIVITY;SOUND LEVELS;WAVE FORMS;THERMOACOUSTIC EFFECT
数据来源: AIP
摘要:
The generation of sound by a moving laser source is investigated both theoretically and experimentally. The analysis is restricted to sound waves generated exclusively through the thermal mechanism. The model is based on the impulse response of a thermoacoustic source as described in a previous paper [J. Acoust. Soc. Am.78, 2074–2082 (1985)]. The results presented here include pressure waveforms, directivity patterns, sound level dependence on source velocity, and spreading curves for subsonic, transonic, and supersonic source velocities. In general, experimental results are in good agreement with theoretical predictions.
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