Abstract
The discovery of Photonic spin Hall effect (PSHE) on surface plasmon polaritons (SPPs) is an important progress in photonics. In this paper, a method of realizing multi-channel PSHE in two-dimensional metal-air-metal waveguide is proposed. By modulating the phase difference phi and polar angle theta of the dipole source, the SPP can propagate along a specific channel. We further prove that PSHE results from the component wave interference theory. We believe that our findings will rich the application of SPPs in optical devices.
Highlights
We further prove that Photonic spin Hall effect (PSHE) results from the component wave interference theory
Based on the understanding of component wave interference of incident light (CWI theory)[23,24], we believe PSHE can be realized in the waveguide structure
We investigate the effect of phase difference φ and polar angle θ on PSHE
Summary
The discovery of Photonic spin Hall effect (PSHE) on surface plasmon polaritons (SPPs) is an important progress in photonics. A method of realizing multi-channel PSHE in two-dimensional metal-air-metal waveguide is proposed. By modulating the phase difference φ and polar angle θ of the dipole source, the SPP can propagate along a specific channel.
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