基于迈克耳孙干涉仪的近场光学实验

Near-field optical experiments based on Michelson interferometer

介绍了一种以迈克耳孙干涉仪作为操作平台的近场光学实验系统.该系统可以测量棱镜内表面全内反射产生的隐失场,观察两维光栅样品的近场光学结构,还可以用于光子扫描隧穿显微镜(PSTM)的原理性实验,有助于学生深入了解隐失场的结构和近场光学显微镜的基本工作原理.该装置具有结构简单可靠,操作简便等特点,十分适用于物理实验教学.

A kind of near-field optical experimental device based on Michelson interferometer is introduced. The device can be used for measurement of evanescent field exist in the near-field of prism surface when total internal reflection occur, also it can be used to observe the near-field optical structure of two dimensional grating and experiments of photon scanning tunneling microscope in principle. It is helpful for students to understand the structure of evanescent field and basic principle of scanning near-field optical microscope. The device is simple and easy to operate;also it has the advantage of high reliability, so it is suitable to be applied in physics experiment.