Enhancing or suppressing spin Hall effect of light in layered nanostructures

Details Enhancing or suppressing spin Hall effect of light in layered nanostructures Enhancing or suppressing spin Hall effect of light in layered nanostructures

2011-05-15

arxiv.org/abs/1105.2936v4

Physical Review A 84, 033801 (2011)

Physics

Optics

6 pages, 3 figures

Scientific paper

10.1103/PhysRevA.84.033801

The spin Hall effect (SHE) of light in layered nanostructures is investigated theoretically in this paper. A general propagation model describing the spin-dependent transverse splitting in the SHE of light is established from the viewpoint of classical electrodynamics. We show that the transverse displacement of wave-packet centroid can be tuned to either a negative or a positive value, or even zero, by just adjusting the structure parameters, suggesting that the SHE of light in layered nanostructures can be enhanced or suppressed in a desired way. The inherent secret behind this interesting phenomenon is the optical Fabry-Perot resonance in the layered nanostructure. We believe that these findings will open the possibility for developing new nano-photonic devices.

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