GENERATION OF NARROW-BAND ULTRASOUND WITH A LONG CAVITY MODE-LOCKED ND-YAG LASER

被引：29

作者：

DEATON, JB

MCKIE, ADW

SPICER, JB

WAGNER, JW

机构：

[1] Center for Nondestructive Evaluation, Johns Hopkins University, Baltimore

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 24期

关键词：

D O I：

10.1063/1.102925

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A passively mode-locked, flashlamp-pumped Nd:YAG laser with a cavity length of 11.19 m has been developed to study the noncontact generation of narrow-band ultrasound. The individual mode-locked pulses acted as separate sources of ultrasound, producing a train of acoustic pulses with a repetition rate of about 13.4 MHz. The ultrasound was generated in an aluminum sample and remotely detected with a path stabilized Michelson interferometer. The energy in the multiple pulse acoustic signal was confined to a considerably reduced spectral range compared with that in a single pulse.

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页码：2390 / 2392

页数：3

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