Large in-plane spatial spin-dependent shift of Gaussian beam reflected from a glass-air interface near the critical angle

Zirui Qin; Pei Zhang; Linjiao Ren; Rubin Qi; Liying Jiang

doi:10.1117/12.2612894

8 July 2022 Large in-plane spatial spin-dependent shift of Gaussian beam reflected from a glass-air interface near the critical angle

Zirui Qin, Pei Zhang, Linjiao Ren, Rubin Qi, Liying Jiang

Author Affiliations +

Proceedings Volume 12280, 2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 1228007 (2022) https://doi.org/10.1117/12.2612894
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

In this paper, we investigated the enhancing and suppressing effects of the critical angle on the in-plane spatial spin-dependent (IPSS) shifts of the photonic spin Hall effect (PSHE) when a linear polarization Gaussian beam is reflected from a glass-air interface. We find that the IPSS shift becomes more significant when the incident angle approaches the critical angle. The direction of the IPSS shift will be reversed when passing through the critical angle. The maximum spin-dependent shift can almost reach 13.5 μm, much larger than previously reported values. Furthermore, the IPSS shift will be greater than 10 μm regardless of the polarization angle of the linearly polarized incident beam. Therefore, the IPSS can be enhanced and suppressed by slightly adjusting the incident angle near the critical angle. These findings provide a new way for modulating PSHE.

Citation Download Citation

Zirui Qin, Pei Zhang, Linjiao Ren, Rubin Qi, and Liying Jiang "Large in-plane spatial spin-dependent shift of Gaussian beam reflected from a glass-air interface near the critical angle", Proc. SPIE 12280, 2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 1228007 (8 July 2022); https://doi.org/10.1117/12.2612894

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