Simultaneous trapping of low- and high-index microparticles by using highly focused elegant Hermite-cosh-Gaussian beams
Simultaneous trapping of low- and high-index microparticles by using highly focused elegant Hermite-cosh-Gaussian beams
复制标题
使用高度聚焦的优雅埃尔米特余弦高斯光束同时捕获低折射率和高折射率微粒
DOI：
10.1016/j.optlaseng.2013.01.017
复制
发表时间：
2013-06-01
影响因子：
4.6
通讯作者：
Zhao, Daomu
中科院分区：
文献类型：
--
作者：
Liu, Zhirong;Huang, Kaikai;Zhao, Daomu
The analytical expression for the propagation of elegant Hermite-cosh-Gaussian (EHCHG) beams through a paraxial ABCD optical system is derived and used to study the radiation forces produced by highly focused EHCHG beams acting on a Rayleigh dielectric particle. Owing to the characteristics of this kind of beams our analysis shows that it can be expected to simultaneously trap and manipulate dielectric spheres with low-refractive index at the focal point, and particles with high-refractive index nearby the focal point. Finally, the stability conditions for effective trapping and manipulating particles by this kind of focused beams are discussed. (C) 2013 Elsevier Ltd. All rights reserved.
