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Proceedings Paper

Geometric phase gradient and spin Hall effect of light
Author(s): Xiaohui Ling; Xinxing Zhou; Cheng-Wei Qiu
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Paper 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.

Paper Details

Date Published: 26 September 2016
PDF: 5 pages
Proc. SPIE 9931, Spintronics IX, 993148 (26 September 2016); doi: 10.1117/12.2236264
Show Author Affiliations
Xiaohui Ling, Hengyang Normal Univ. (China)
Xinxing Zhou, Hunan Normal Univ. (China)
Cheng-Wei Qiu, National Univ. of Singapore (Singapore)


Published in SPIE Proceedings Vol. 9931:
Spintronics IX
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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