声光Naman-Nath衍射特性的研究

讨论了液体介质中的超声相位光栅的形成,根据声光相互作用类型的区分标准,在液体介质的超声光栅实验中声光相互作用一般为Naman-Nath衍射;相位光栅可以由声行波和声驻波形成,且形成的各级衍射条纹极大均由相同的光栅方程决定,各级衍射条纹的强度由相应阶次的J2m函数值决定;在此基础上给出了衍射条纹和衍射光强的分布特点.

Study of the acoustic-optic Naman-Nath diffractive characteristic

The form mechanism of ultrasonic grating is discussed and the acoustic-optic effect is Naman-Nath diffraction in ultrasonic grating experiment in liquid base on the distinguish standard of acoustic-optic effect types. The diffractive stripe azimuth of acoustic traveling wave and acoustic standing wave are determined by the same diffractive equation, and the intensity of diffractive stripe is determined by the value of J2m(v). Finally, the distributing characteristic of diffractive stripe and diffractive int...