Electrically Tunable Metasurface for Highly-Efficient Beam Steering

Junghyun Park,Byung Gil Jeong,Sun Il Kim, Minkyung Lee,Kyoungho Ha,Hyuck Choo

High Contrast Metastructures XII（2023）

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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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Pretraining has recently greatly promoted the development of natural language processing (NLP)
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Chat Paper

【要点】：本文提出了一种电调控的全介电超表面，能在近红外区反射光相位调控超过270°，并保持高反射率，实现了高效光束偏转。

【方法】：通过设计全介电超表面阵列，利用单独施加的电压来调控光的相位。

【实验】：实验采用近红外光，通过改变电压实现了超表面相位的大范围调控，并在所使用的数据集上展示了高效的光束偏转性能。具体数据集名称在文中未提及。