Diffraction of Electromagnetic Waves by Sound Waves
作者:
Hans J. Schmitt,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1961)
卷期:
Volume 33,
issue 10
页码: 1288-1292
ISSN:0001-4966
年代: 1961
DOI:10.1121/1.1908419
出版商: Acoustical Society of America
数据来源: AIP
摘要:
For the diffraction of electromagnetic waves from a standing sound wave, the amplitudes of the first diffraction order are calculated from Born's approximation. If the wavelength of the electromagnetic signal is made comparable to the acoustic wavelength, the first diffraction order vanishes periodically with increasing width of the sound beam because of a destructive interference of scattered waves. The sound‐perturbed medium becomes also slightly anisotropic. The diffraction of microwaves by a standing sound wave in oil is measured as a function of sound frequency and polarization of the electromagnetic wave.
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