摘要
提出了一种光通过超声驻波及超声行波后能产生高衬比度相干条纹的新术,利用超声驻波调制光束与超声行波作用后的相关衬比度来选定相干波束.从理论上分析了其相关叠加的结果,并在实验中得到了证实.
A novel technique of imaging a ultrasonic traveling wavefront has been developed. It is based on correlating interaction between modulated ultrasonic standing waves and ultrasonic traveling waves. The results of correlation imaging have been analysed and proved by experiments. A higher contrast image of the ultrasonic travefront has been obtained.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1992年第10期914-920,共7页
Acta Optica Sinica
关键词
超声行波
超声驻波
衬比度
相干
ultrasonic traveling wave, ultrasanic standing wave, contrast.
