Open AccessPhotonic spin Hall effect on an ellipsoidal Rayleigh particle in scattering far-field
Author(s) -
Wenjia Li,
Jianlong Liu,
Yang Gao,
Keya Zhou,
Shutian Liu
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.27.028194
Subject(s) - rayleigh scattering , optical force , optics , photonics , light scattering , physics , polarization (electrochemistry) , scattering , polarimeter , spin hall effect , dipole , mie scattering , condensed matter physics , spin polarization , optical tweezers , polarimetry , quantum mechanics , electron , chemistry
We present the photonic spin Hall effect on an ellipsoidal Rayleigh particle, which amounts to a polarization-dependent shift in scattering far-field. Based on the dipole model, we demonstrate that such shift is unavoidable when the light incidence is inclined with respect to the main axis of the ellipsoidal Rayleigh particle. The result has general validity and can be applied to metal and dielectric materials. In addition, the photonic spin Hall effect also manifests itself in the optical force and torque exerted on the particle, which is promising for precision metrology, spin-optics devices and optical driven micro-machines. Due to wide existence of the Rayleigh particles in nature, we believe that our findings might provide a useful toolset for investigating polarization-dependent scattering of particles.