Geometric phase gradient and spin Hall effect of light

Xiaohui Ling; Xinxing Zhou; Cheng-Wei Qiu

doi:10.1117/12.2236264

26 September 2016 Geometric phase gradient and spin Hall effect of light

Xiaohui Ling, Xinxing Zhou, Cheng-Wei Qiu

Proceedings Volume 9931, Spintronics IX; 993148 (2016) https://doi.org/10.1117/12.2236264
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

The spin Hall effect (SHE) of light originates from the spin-orbit interaction, which can be explained in terms of two geometric phases: the Rytov-Vladimirskii-Berry phase and the Pancharatnam-Berry phase. Here we present a unified theoretical description of the SHE based on the two types of geometric phase gradients, and observe experimentally the SHE in structured dielectric metasurfaces induced by the PB phase. Unlike the weak real-space spin-Hall shift induced by the SRB phase occurring at interfacial reflection/refraction, the observed SHE occurs in momentum space is large enough to be measured directly.

Citation Download Citation

Xiaohui Ling, Xinxing Zhou, and Cheng-Wei Qiu "Geometric phase gradient and spin Hall effect of light", Proc. SPIE 9931, Spintronics IX, 993148 (26 September 2016); https://doi.org/10.1117/12.2236264

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