摘要
用瑞利散射理论导出了强聚焦TEM_∞高斯光束中球状和椭球状粒子的受力公式,指出了吸收对俘获瑞利球、椭球、圆柱和圆片状粒子的重要影响及可俘获的条件,并讨论各种非球粒子在偏振和非偏振光束中的取向。
The formulas of the force applied by a strongly forcused TEMoo Gassian laser beam on spheres and speriods are derived from Rayleigh theory. The importance of absoption to trapping Rayleigh spheres、speriods、circular cylinder and plat circular disc was pointed out. The orientation of the non-sphere particles in the polarrized and non-polarized laser beams was also discussed.
关键词
激光势阱
瑞利粒子
瑞利散射
Laser trapping, Rayleigh scattering, optical pressure
