Abstract
We propose a simple, efficient, and fast tunable method to generate arbitrary vector vortex beams on the hybrid-order Poincaré sphere in an electrically driven way. The scheme incorporates the tunability and switching capabilities of liquid crystals into dielectric metasurfaces to form an efficient vector vortex beam generator. By applying certain voltages on the liquid crystal phase retarder, the generator converts a linearly polarized Gaussian beam into any desirable vector vortex beams. We demonstrate that the evolution route of the corresponding vector vortex states is just a closed circuit on the hybrid-order Poincaré sphere when the phase retardation varies from 0 to . Several special cases are selected to demonstrate our scheme, and the experimental results coincide well with the theoretical predictions.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Zhenxing Liu, Yuanyuan Liu, Yougang Ke, Yachao Liu, Weixing Shu, Hailu Luo, and Shuangchun Wen
Photon. Res. 5(1) 15-21 (2017)
Sumit Kumar Singh, Shun Notte, Ryuki Yamaguchi, Kenji Kinashi, Naoto Tsutsumi, Wataru Sakai, Yasuhiro Awatsuji, and Boaz Jessie Jackin
Opt. Lett. 49(4) 1053-1056 (2024)
Shaozhen Lou, Yaqin Zhou, Yide Yuan, Tiegang Lin, Fan Fan, Xiaoqian Wang, Huihui Huang, and Shuangchun Wen
Opt. Express 27(6) 8596-8604 (2019)