【摘要】 在非均匀光场中,本文基于几何光学原理,以射线光学计算模型为基础,对几何尺寸远大于光波长的米氏球状粒子所受激光微束横向(沿Y轴方向)光阱力进行了计算。并且在给定参数条件下,进行了数值仿真,根据仿真结果,讨论了光束束腰半径、相对折射率、激光波长及功率等光镊系统中的主要参数与光阱品质特性的关系。更多还原

【Abstract】 By using the RO model,which is based on the theory of geometric optics,the optical trapping force on the microsphere particles in the Mie scattering field is calculated quantitatively.The simulation results under given parameters are described.According to the simulation results,the relations between the optical trapping force and the main parameters of the system,including focus spot radius,the relative refractive index,the laser wave-length and power and so on,are discussed.更多还原