EXCITATION OF SURFACE ELASTIC WAVES BY TRANSIENT SURFACE HEATING
作者:
R. E. Lee,
R. M. White,
期刊:
Applied Physics Letters
(AIP Available online 1968)
卷期:
Volume 12,
issue 1
页码: 12-14
ISSN:0003-6951
年代: 1968
DOI:10.1063/1.1651832
出版商: AIP
数据来源: AIP
摘要:
The generation of surface elastic waves by the transient surface heating of piezoelectric and nonpiezoelectric solids is described. AQ‐switched ruby laser produces the surface heating; the frequencies of the resultant surface waves are Fourier components of the laser waveform. The use of a spatially periodic illumination is shown to increase the effectiveness of generation at a selected frequency. This method of generating surface waves appears suitable for microwave frequency operation as well as operation at high wave amplitudes at low frequencies.
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