从集成了准直金属片和四分之一波板的共振隧道二极管辐射出的圆偏振平面太赫兹波

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2024-08-04 DOI:10.35848/1882-0786/ad52e5

Takehito Suzuki, Kota Endo, Takahito Haruishi, Kazuisao Tsuruda, Kouhei Urashima and Shunji Yamamori

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引用次数: 0

摘要

基于元表面的太赫兹平面光学技术可以用光学薄型元件取代大型光学元件。然而，具有前所未有材料特性的元表面通常只能产生一种特定功能，而太赫兹平面光学技术尚未在需要多种功能的太赫兹设备中得到普遍应用。在这里，我们介绍了一种由准直金属片和四分之一波板组成的双层组件，它能将来自共振隧道二极管的线性偏振太赫兹广角辐射波转换为圆偏振平面波。我们的研究成果将应用于 6 G 无线通信中具有光学漩涡、超高指向性和任意波前控制的层压结构。

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Circularly polarized plane terahertz waves radiated from a resonant tunneling diode integrated with a collimating metalens and quarter-wave plate

Terahertz flat optics based on metasurfaces can replace massive optical components with optically thin components. However, metasurfaces with unprecedented material properties frequently produce a specified function, and terahertz flat optics has yet to be commonly adopted in terahertz devices that require multiple functions. Here, we present a two-layer component composed of a collimating metalens and a quarter-wave plate that convert linearly polarized terahertz wide-angle radiation waves from a resonant tunneling diode to circularly polarized plane waves. Our findings would be applied to laminate structures with optical vortices, ultrahigh directivity and arbitrary wavefront control in 6 G wireless communications.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).