NONCONTACTING OPTICAL-GENERATION OF FOCUSED SURFACE ACOUSTIC-WAVES USING A CUSTOMIZED ZONEPLATE

被引：5

作者：

LIU, M ^{[1
]}

HO, HP ^{[1
]}

SOMEKH, MG ^{[1
]}

WEAVER, JMR ^{[1
]}

机构：

[1] UNIV GLASGOW,DEPT ELECTR & ELECT ENGN,GLASGOW G12 8QQ,LANARK,SCOTLAND

来源：

ELECTRONICS LETTERS | 1995年 / 31卷 / 04期

关键词：

SURFACE ACOUSTIC WAVE DEVICES; COMPUTER-GENERATED HOLOGRAPH; HOLOGRAPH OPTICAL ELEMENTS;

D O I：

10.1049/el:19950216

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The use of computer generated holographic zoneplates to enhance the generation of laser ultrasound is described. An amplitude grating capable of focusing laser light onto an are which in turn generates a near diffraction limited focus of 82MHz Rayleigh surface waves is also described. The application of zoneplates for ultrasonic nondestructive evaluation and imaging is considered.

引用

页码：264 / 265

页数：2

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