Simultaneous Control of Light Polarization and Phase Distributions Using Plasmonic Metasurfaces |
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| Authors: | Jianxiong Li Shuqi Chen Haifang Yang Junjie Li Ping Yu Hua Cheng Changzhi Gu Hou‐Tong Chen Jianguo Tian |
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| Affiliation: | 1. Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics and Teda Applied Physics Institute, Nankai University, Tianjin, China;2. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China;3. Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, USA |
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| Abstract: | Harnessing light for modern photonic applications often involves the control and manipulation of light polarization and phase. Traditional methods require a combination of multiple discrete optical components, each of which contributes to a specific functionality. Here, plasmonic metasurfaces are proposed that accomplish the simultaneous manipulation of polarization and phase of the transmitted light. Arbitrary spatial field distribution of the optical phase and polarization direction can be obtained. The multifunctional metasurfaces are validated by demonstrating a broadband near‐perfect anomalous refraction with controllable linear polarization through introducing a constant phase gradient along the interface. Furthermore, the power of the proposed metasurfaces is demonstrated by generating a radially polarized beam. The new degrees of freedom of metasurfaces facilitate arbitrary manipulation of light and will profoundly affect a wide range of photonic applications. |
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| Keywords: | metasurfaces plasmonics phase polarization radially polarized beams |
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