平面光波与球面声波的声光衍射研究  

Acousto-optic diffraction of plane light wave with spherical acoustic wave

作　　者：席锋[1] 胡莉[1] XI Feng;HU Li(School of Computer Science and Information Engineering,Chongqing Technology and Business University,Chongqing 400067,China)

机构地区：[1]重庆工商大学计算机科学与信息工程学院,重庆400067

出　　处：《大学物理》2021年第12期20-23,共4页College Physics

摘　　要：对平面光波与开口球腔内的球面驻波声场的声光相互作用,分别进行理论和实验研究.以光的衍射理论为基础,推导出了衍射的光强分布,并通过数值计数得到了衍射光强分布图样.在搭建的实验平台上,对该声光相互作用的衍射现象进行了实验测试,从衍射图样测得的声波长与实际声波长相符.The acousto-optic interaction of plane light wave with spherical acoustic in spherical cavity with open ends is investigated theoretically and experimentally. On basis of the diffraction theory of light, the intensity distribution of diffracted light is deduced. And then, an image of the diffracted light is displayed by numerical calculation. On the other aspect, the acousto-optic diffraction is measured with our apparatus. The measured wavelength of acoustic wave is coincided with that of excited spherical acoustic wave.

关 键 词：光波 球面声波 声光相互作用 衍射光强分布 

分 类 号：O436.1[机械工程—光学工程]