Pancharatnam-Berry Phase Induced Spin-Selective Transmission in Herringbone Dielectric Metamaterials.

Kenney, Mitchell; Li, Shaoxian; Zhang, Xueqian; Su, Xiaoqiang; Kim, Teun-Teun; Wang, Dongyang; Wu, Dongmin; Ouyang, Chunmei et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

A dielectric metamaterial approach for achieving spin-selective transmission of electromagnetic waves is proposed. The design is based on spin-controlled constructive or destructive interference between propagating phase and Pancharatnam-Berry phase. The dielectric metamaterial, consisting of monolithic silicon herringbone structures, exhibits a broadband operation in the terahertz regime.