In chapter three, the trapping force of strong focused laser beam exerting to Mie particles and Rayleigh particles is calculated.
第二章介绍了激光捕获技术的基本原理，阐述了光镊捕获和操控粒子的机制。
But, when the doughnut laser beam is used as trapping light, relative index can be less than 1. The beam waist of focused laser beam has a virtual affection for the trapping force.
但是，在空心光束中可以实现对地折射率粒子的稳定捕获，即粒子的相对折射率可以小于1。
In chapter 4, laser cooling and trapping and applications of ultracold atoms are reviewed. The beam and atom interaction theory is analyzed.
第四章针对空心光束的应用，综述了激光与原子相互作用的物理机制，分析了空心光束冷却原子的机理以及研究动态。
应用推荐