Open AccessSpin Hall effect of light in a multilayer-medium structure
Author(s) -
M Perez-Mato Juan,
Hailu Luo,
Shuangchun Wen
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.094205
Subject(s) - refractive index , optics , transverse plane , refraction , spin (aerodynamics) , materials science , reflection (computer programming) , physics , condensed matter physics , thermodynamics , structural engineering , computer science , programming language , engineering
In this paper, we study the spin Hall effect (SHE) of light in a multilayer-medium. By taking three-layer medium for example, the three-dimensional transmission model of beams passing through a prim-air-prim barrier is build. The various factors in SHE of light, such as thickness of the air gap, refractive index gradient, and incidence angle are investigated. For a certain circularly polarized component, the transverse shift can be modulated by Changing the refractive index gradient associated with the two prisms: whether the transverse shift of reflection and transmission fields is positive or negative depends on the refractive index gradient. Compared with the SHE in the two-layer medium, the SHE in the Gaussian beam refraction can be evidently enhanced via three-layer medium. Based on the theory of SHE of light,the theoretical basis for regulating and enhancing optical spin Hall effect is obtained.