Open AccessEffect of multiple scattering to optical forces on a sphere near an optical waveguide
Author(s) -
Jian Xu,
Wei-Ping Zang,
Jianguo Tian
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.004195
Subject(s) - scattering , optical force , optics , waveguide , physics , light scattering , mie scattering , scattering theory , optical phenomena , optical tweezers
We have investigated the effect of multiple scattering to optical forces on a particle in the evanescent field produced by an optical waveguide. Considering the multiple scattering between the sphere and the waveguide, we extend the formalism based on transition matrix and reflection matrix to calculate the optical forces on a sphere near an optical waveguide. Numerical results show that the influence that multiple scattering has on the optical forces can't be ignored, especially when the structure resonance of the particle arises. Moreover, the effect of multiple scattering to optical forces is also studied in detail on the condition that the distance between the sphere and the waveguide is within the effective operating distance.