4 January 2008 Transverse optical trapping of spherical particle with strong absorption in a focused Gaussian beam
Author Affiliations +
Abstract
In this work, the transverse optical trapping of spherical particle with strong absorption is studied in geometrical optics model by numerical simulation. In our work, the exact expressions of wave vector are used instead of traditional approximate expressions, and the transverse optical trapping force acting on a spherical particle due to strong absorption is calculated when the particle is illuminated by a focused Gaussian beam of TEM00 mode. The calculated results show that stable transverse optical trapping positions only exist when the center of the spherical particle is located in front of the focus of the beam. Our results also reveal that the trapping positions are decided by the radius of the beam waist ω0. The magnitude of transverse optical trapping force and the stiffness of optical trapping decrease with the increase in ω0.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yanfeng Zhang, Yanfeng Zhang, Yudong Li, Yudong Li, Guoxin Cui, Guoxin Cui, Hongbing Liu, Hongbing Liu, Jing Chen, Jing Chen, Jingjun Xu, Jingjun Xu, Qian Sun, Qian Sun, } "Transverse optical trapping of spherical particle with strong absorption in a focused Gaussian beam", Proc. SPIE 6832, Holography and Diffractive Optics III, 68320K (4 January 2008); doi: 10.1117/12.755516; https://doi.org/10.1117/12.755516
PROCEEDINGS
8 PAGES


SHARE
Back to Top