Abstract

Spin-selective absorption in a two-dimensional (2D) chiral plasmonic grating is observed by excitation of chiral-dependent plasmonic cavity resonance. For the proposed structures, the incident right-handed circularly polarized light is absorbed with nearly 100% efficiency, whereas the incident left-handed circularly polarized light is reflected with same handedness. Moreover, we show that the location of spin-selective absorption can be controlled flexibly by tuning the plasmonic cavity dimension. The intensity of spin-selective absorption can be enhanced as well as suppressed based on Fabry–Perot interference phase relation. Such 2D chiral plasmonic gratings could find many potential applications in novel photon-spin selective devices, such as circularly polarized light detectors/emitters, chiral sensors, chiral cavities, and spin lasers.

© 2019 Optical Society of America

Chirality selective metamaterial absorber with dual bands

Lili Wang, Xiaojun Huang, Minhua Li, and Jianfeng Dong
Opt. Express 27(18) 25983-25993 (2019)

Chiral plasmonic metasurface absorbers in the mid-infrared wavelength range

Md. Shamim Mahmud, Daniel Rosenmann, David A. Czaplewski, Jie Gao, and Xiaodong Yang
Opt. Lett. 45(19) 5372-5375 (2020)

Direct detection of photon spin angular momentum by a chiral graphene mid-infrared photodetector

Jingyang Peng, Benjamin P. Cumming, and Min Gu
Opt. Lett. 44(12) 2998-3001 (2019)

Liquid-crystal-loaded chiral metasurfaces for reconfigurable multiband spin-selective light absorption

Dong Xiao, Yan Jun Liu, Shengtao Yin, Jianxun Liu, Wei Ji, Bing Wang, Dan Luo, Guixin Li, and Xiao Wei Sun
Opt. Express 26(19) 25305-25314 (2018)

Chiral selection rules for multi-photon processes in two-dimensional honeycomb materials

Jingxin Cheng, Di Huang, Tao Jiang, Yuwei Shan, Yingguo Li, Shiwei Wu, and Wei-Tao Liu
Opt. Lett. 44(9) 2141-2144 (2019)