Open AccessRadiation forces on a Rayleigh particle produced by partially coherent circular Airy beams
Author(s) -
Mingli Sun,
Jiahao Zhang,
Nan Li,
Kaikai Huang,
Huizhu Hu,
Xian Zhang,
Xuequan Lu
Publication year - 2019
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.27.027777
Subject(s) - optical force , optics , rayleigh scattering , physics , optical tweezers , radiation , radius , radiation pressure , beam (structure) , airy beam , pressure gradient force , particle (ecology) , optical radiation , oceanography , computer security , computer science , geology
In this work, the radiation force on a Rayleigh dielectric particle induced by the partially coherent circular Airy beam (PCCAB) is investigated. Our numerical results show that the PCCAB can be used to trap and manipulate particles. The radiation force distribution and trapping stability have been analyzed under different coherent lengths. It is found that, with the increase of the spatial coherent length, the radiation force is increased and the particle can be stably trapped at more points. Therefore, the radiation force as well as the depth of potential well can be effectively modulated by controlling the spatial coherent length in optical micromanipulation. The trapping properties of PCCAB have also been studied under other different parameters, including the scale factor and initial radius.