用于太赫兹平面光学的高折射率超表面

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2020-11-08 DOI:10.1109/IRMMW-THz46771.2020.9370901

K. Endo, J. Kim, T. Suzuki

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引用次数: 0

摘要

高折射率的超表面可以为各种连续波光源的太赫兹平面光学提供一个可访问的平台。我们提出了一种超表面准直器，它可以增强太赫兹连续波源的指向性，这是基于我们原始的高折射率无反射超表面的第一个应用。测量结果证实，谐振隧道二极管在0.312太赫兹振荡时远场的指向性增强了2.3倍。所提出的超表面准直器可以集成在各种波束整形组件中，并有助于太赫兹应用的发展，如先进一代6G无线通信和成像。

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High Refractive Index Metasurface for Terahertz Flat Optics

High refractive index metasurfaces can provide an accessible platform for terahertz flat optics with a variety of continuous-wave (CW) sources. We present a metasurface collimator that enhances the directivity of a terahertz CW source as a first application based on our original reflectionless metasurface with a high refractive index. Measurements confirm the directivity enhancement of 2.3 times at the far field with a resonant-tunneling diode oscillating at 0.312 THz. The proposed metasurface collimator can be incorporated in various beam shaping components and contribute to the development of terahertz applications such as wireless communication in the advanced generation 6G and imaging.

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2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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