Abstract
With the extensive research on the Pancharatnam–Berry phase, metasurfaces have been widely designed as various cross-polarized nanodevices for circularly polarized (CP) illumination. However, co- and cross-polarized lights are rarely co-modulated by the metasurface. To fully utilize the transmitted light, we propose a spin-selected bifunctional metasurface composed of arrayed silver nanorods, integrating an amplitude-based grayscale imaging for co-polarized transmission and a phase-based metalens for cross-polarized transmission, under left-handed CP incidence. Moreover, such dual functionalities work well under right-handed CP incidence. Both experiments and simulations demonstrate the bifunctional performance as potential meta-devices.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Lili Tang, Renchao Jin, Yue Cao, Jiaqi Li, Jin Wang, and Zheng-Gao Dong
Opt. Lett. 45(18) 5258-5261 (2020)
Yue Cao, Lili Tang, Jiaqi Li, Jin Wang, and Zheng-Gao Dong
Opt. Lett. 45(18) 5181-5184 (2020)
Yue Cao, Lili Tang, Renchao Jin, Jiaqi Li, Jin Wang, and Zheng-Gao Dong
Opt. Lett. 46(5) 1117-1120 (2021)