Laser excitation of flexural waves and their scattering by fractal inhomogeneities in a thin plate

被引：0
|
作者：
Lyamshev, ML [1 ]
机构：
[1] Russian Acad Sci, Inst Gen Phys, Ctr Wave Res, Moscow 119991, Russia
来源：
TECHNICAL PHYSICS | 2002年 / 47卷 / 05期
基金：
俄罗斯基础研究基金会;
关键词：
Radiation; Attenuation; Laser Radiation; Fractal Dimension; Frequency Dependence;
D O I：
10.1134/1.1479998
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The excitation of flexural waves in a thin plate (film) by harmonically modulated laser radiation and their scattering by small fractal inhomogeneities are considered. An expression for the mean fluctuation intensity for the scattered wave field is obtained. A relationship between the intensity, parameters of the laser radiation and the plate, and the fractal dimension of inhomogeneities is found. The expected frequency dependence of the flexural wave attenuation in the plate due to their scattering by fractal inhomogeneities is discussed. (C) 2002 MAIK "Nauka/Interperiodica".
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页码：651 / 653
页数：3
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