300MHz激光扫描声学显微镜
300MHz scanning laser acoustic microscope
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摘要: 本文对激光扫描声学显微镜（ＳＬＡＭ）的刀口理论以及利用谐波技术提高其工作频率的方法进行了研究．实验上实现了使基波频率为１００ＭＨｚ的ＳＬＡＭ工作于３００ＭＨｚ三次谐波上．最后给出了一些样品在３００ＭＨｚＳＬＡＭ系统上较清晰的声学图像．Abstract: The knife-edge and harmonic technique in the laster Scanning Acoustic Microscope is studied in this paper,The operating frequency of the SLAM can be increased from100MHz to 300MHz using the harmonic technique. the SLAM images of some samples at 300MHz are presented
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