Abstract
Metasurfaces have exhibited powerful capabilities in the modulation of electromagnetic waves. Here, we demonstrate the polarization-selective full-space complex amplitude modulations of incident electromagnetic waves using all-dielectric metasurfaces. This is done via ingeniously designed subwavelength-scale super-pixels. As a proof of concept, we design two metasurfaces working in transmission and reflection spaces: one generates two independent vortex beams and the other generates two pairs of foci of arbitrary intensity ratios. The proposed full-space complex amplitude modulation provides more choices for the manipulation of electromagnetic waves.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Xuyue Guo, Jinzhan Zhong, Peng Li, Dandan Wen, Sheng Liu, Bingyan Wei, Shuxia Qi, and Jianlin Zhao
Opt. Lett. 47(2) 353-356 (2022)
Yuncheng Liu, Hui Gao, Xuhao Fan, Xinger Wang, Ke Xu, Binzhang Jiao, Minghui Hong, and Wei Xiong
Opt. Express 30(21) 37686-37696 (2022)
Houjin He, Shiwei Tang, Ziwei Zheng, and Fei Ding
Opt. Lett. 47(10) 2478-2481 (2022)