Noncontact continuous wavefront diffractive acoustic elements for Rayleigh wave control

被引：5

作者：

Clark, M ^{[1
]}

Sharples, SD ^{[1
]}

Somekh, MG ^{[1
]}

机构：

[1] Univ Nottingham, Sch Elect & Elect Engn, Nottingham NG7 2RD, England

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 24期

关键词：

D O I：

10.1063/1.123195

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A laser is used to excite Rayleigh waves on a sample. The optical distribution of the laser energy as it strikes the sample is controlled using a computer generated hologram-this optical distribution determines the initial acoustic wavefront and hence the acoustic amplitude distribution. In this letter, we present two designs of acoustic elements which use diffraction of the Rayleigh waves as a means of controlling the acoustic amplitude distribution. (c) 1999 American Institute of Physics. [S0003-6951(99)02824-7].

引用

页码：3604 / 3606

页数：3

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