Abstract
Metasurface-based optical encryption techniques have garnered significant attention due to their ultracompact nature and ability to support multichannel optical responses. Here, we present a liquid-crystal (LC)-integrated metasurface that enables polarized-encrypted amplitude and phase multiplexing. This approach allows for simultaneously realizing trifold displays of both meta-holography and meta-nanoprinting. By combining propagation and geometric phase modulation, we meticulously screen the unit cells of the metasurface, establishing a comprehensive structural dictionary. As a proof-of-concept, we developed an electrically driven advanced optical encryption platform that boasts multifunctional channels and two-level encryption capabilities. This study paves the way for advanced optical encryption and identification techniques.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Shijie Zhang, Qi Wang, Ruimei Zeng, Chenliang Chang, Dawei Zhang, and Songlin Zhuang
Opt. Express 32(3) 4639-4649 (2024)
Bin Fang, Fangzhou Shu, Zhizhang Wang, Jitao Ji, Zhongwei Jin, Zhi Hong, Changyu Shen, Qingqing Cheng, and Tao Li
Opt. Lett. 48(11) 3119-3122 (2023)
Shijie Zhang, Qi Wang, Banglian Xu, Ruijin Hong, Dawei Zhang, and Songlin Zhuang
Opt. Express 31(7) 11940-11953 (2023)