Generation of narrow‐band ultrasound with a long cavity mode‐locked Nd:YAG laser
Generation of narrow‐band ultrasound with a long cavity mode‐locked Nd:YAG laser
复制标题
使用长腔锁模 Nd:YAG 激光器产生窄带超声
DOI：
10.1063/1.102925
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
J. W. Wagner
中科院分区：
文献类型：
--
作者：
J. B. Deaton;A. Mckie;J. Spicer;J. W. Wagner
研制了一台腔长为11.19 m的被动锁模闪光灯泵浦Nd：YAG激光器，用于研究窄带超声的非接触产生。各个锁模脉冲作为单独的超声源，产生一系列重复率约为13.4 MHz的声脉冲。超声波产生在铝样品和远程检测与路径稳定迈克尔逊干涉仪。多脉冲声信号中的能量被限制在与单脉冲声信号中的能量相比显著减小的频谱范围内。
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.