期刊
SCIENCE
卷 364, 期 6445, 页码 1087-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaw6747
关键词
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资金
- National Research Foundation of Singapore [NRF-NRFI2017-01]
- IET A F Harvey Engineering Research Prize 2016
- A*STAR SERC Pharos program (Singapore) [152 73 00025]
- AME Programmatic Grant (Singapore) [A18A7b0058]
Rapidly developing augmented reality, solid-state light detection and ranging (LIDAR), and holographic display technologies require spatial light modulators (SLMs) with high resolution and viewing angle to satisfy increasing customer demands. Performance of currently available SLMs is limited by their large pixel sizes on the order of several micrometers. Here, we propose a concept of tunable dielectric metasurfaces modulated by liquid crystal, which can provide abrupt phase change, thus enabling pixel-size miniaturization. We present a metasurface-based transmissive SLM, configured to generate active beam steering with >35% efficiency and a large beam deflection angle of 11 degrees. The high resolution and steering angle obtained provide opportunities to develop the next generation of LIDAR and display technologies.
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