General formulations for computing the optical gradient and scattering forces on a spherical chiral particle immersed in generic monochromatic optical fields

Zheng, Hongxia1,2,3; Li, Xiao4; Jiang, Yikun5; Ng, Jack6; Lin, Zhifang1,2,7; Chen, Huajin1,2,3

2020-05-14

10.1103/PhysRevA.101.053830

PHYSICAL REVIEW A   影响因子和分区

2469-9926

2469-9934

We present the Cartesian multipole expansion theory for computing the optical force acting on a spherical chiral particle immersed in generic monochromatic optical fields. The theory enables us to develop the general formulations for individually calculating the optical gradient and scattering forces (also known as the conservative and nonconservative forces) on a spherical chiral particle of arbitrary size. A set of analytical expressions are then derived for the gradient and scattering forces acting on a chiral particle in arbitrary optical field modeled by a series of homogenous plane waves. As examples of applications, we reveal that, in optical lattice composed of three interferential plane waves, the profiles of the in-plane optical gradient and scattering force acting on a spherical chiral particle show higher degree of symmetry and exhibit invariance with respect to the particle size, material composition, and chirality. The remarkable characteristics are totally masked in the undecomposed optical total force. The rigorous analytical decomposition of optical force sheds some more light on the physical understanding of light-matter interaction, it may also contribute significantly to the design of optical beams for achieving more diversified optical micromanipulation on chiral particles.

SCI ; EI

英语

其他

National Natural Science Foundation of China[11304260][11574055][11804061] ; National Key R&D Program of China[2018YFA0306201][2016YFA0301103] ; Natural Science Foundation of Guangxi Province[2018GXNSFBA281021] ; Scientific Base and Talent Special Project of Guangxi Province[AD19110095] ; Open Project of State Key Laboratory of Surface Physics in Fudan University[KF2019_11]

Optics ; Physics

Optics ; Physics, Atomic, Molecular & Chemical

WOS:000532647600011

AMER PHYSICAL SOC

20202308792925

Particle size ; Wave propagation ; Computation theory ; Elastic waves ; Crystal lattices ; Spheres

Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory:721.1 ; Laser Beam Interactions:744.8 ; Mechanics:931.1 ; Crystal Lattice:933.1.1

PHYSICS

Web of Science

1.Fudan Univ, Key Lab Micro & Nanophoton Struct, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
2.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
3.Guangxi Univ Sci & Technol, Sch Elect & Informat Engn, Liuzhou 545006, Guangxi, Peoples R China
4.Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Peoples R China
5.Cornell Univ, Dept Phys, Ithaca, NY 14853 USA
6.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
7.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China

Zheng, Hongxia,Li, Xiao,Jiang, Yikun,et al. General formulations for computing the optical gradient and scattering forces on a spherical chiral particle immersed in generic monochromatic optical fields[J]. PHYSICAL REVIEW A,2020,101(5).

Zheng, Hongxia,Li, Xiao,Jiang, Yikun,Ng, Jack,Lin, Zhifang,&Chen, Huajin.(2020).General formulations for computing the optical gradient and scattering forces on a spherical chiral particle immersed in generic monochromatic optical fields.PHYSICAL REVIEW A,101(5).

Zheng, Hongxia,et al."General formulations for computing the optical gradient and scattering forces on a spherical chiral particle immersed in generic monochromatic optical fields".PHYSICAL REVIEW A 101.5(2020).