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17 March 2023 Electrically tunable metasurface for highly-efficient beam steering
Junghyun Park, Byung Gil Jeong, Sun Il Kim, Minkyung Lee, Kyoungho Ha, Hyuck Choo
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Proceedings Volume PC12432, High Contrast Metastructures XII; PC124320S (2023) https://doi.org/10.1117/12.2652213
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
Metasurfaces provide versatile platforms for arbitrary wavefront shaping with designer optical response such as amplitude, phase, and polarization at the deep subwavelength regime. Tunable metasurfaces can bring additional degree of freedom in terms of the time-dependent change of these responses, which can pave a way for novel applications such as wide-field-of-view holographic display and light detection and ranging (LiDAR). In this talk, we present the all-dielectric metasurface array that can modulate the phase of light above 270° in reflection with high reflectivity over 60% as a function of the individually applied voltage in the near infrared regime.
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Junghyun Park, Byung Gil Jeong, Sun Il Kim, Minkyung Lee, Kyoungho Ha, and Hyuck Choo "Electrically tunable metasurface for highly-efficient beam steering", Proc. SPIE PC12432, High Contrast Metastructures XII, PC124320S (17 March 2023); https://doi.org/10.1117/12.2652213
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KEYWORDS
Beam steering
Silicon
Wavefronts
Optical design
Polarization
Reflectivity
Resistors
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