基于激光直写氧化石墨烯纸的超薄太赫兹偏转装置

Ultra-Thin Terahertz Deflection Device Based on Laser Direct Writing Graphene Oxide Paper.

作者信息

Suo Yixin, Zhang Luming, Li Yihang, Wu Yu, Zhang Jian, Wen Qiye

机构信息

Department of Electronic Science and Engineering, University Electronic Science and Technology of China, Chengdu 610054, China.

Institute of Advanced Millimeter-Wave Technology, University Electronic Science and Technology of China, Chengdu 610054, China.

出版信息

Micromachines (Basel). 2022 Apr 28;13(5):686. doi: 10.3390/mi13050686.

DOI:10.3390/mi13050686

PMID:35630153

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9147944/

Abstract

In the world of terahertz bands, terahertz beam deflection has gradually attracted substantial attention, due to its great significance in wireless communications, high-resolution imaging and radar applications. In this paper, a low-reflection and fast-fabricated terahertz beam deflection device has been realized by utilizing graphene oxide paper. Using laser direct writing technology, graphene oxide has been patterned as a specific sample. The thickness of the graphene oxide-based terahertz devices is around 15-20 μm, and the processing takes only a few seconds. The experimental results show that the beam from this device can achieve 5.7° and 10.2° deflection at 340 GHz, while the reflection is 10%, which is only 1/5 of that of existing conventional devices. The proposed device with excellent performance can be quickly manufactured and applied in the fields of terahertz imaging, communication, and perception, enabling the application of terahertz technology.

摘要

在太赫兹频段领域，太赫兹波束偏转因其在无线通信、高分辨率成像和雷达应用中的重大意义而逐渐引起了广泛关注。本文利用氧化石墨烯纸实现了一种低反射且快速制造的太赫兹波束偏转装置。采用激光直写技术，将氧化石墨烯制成特定图案的样品。基于氧化石墨烯的太赫兹器件厚度约为15 - 20μm，加工仅需几秒钟。实验结果表明，该装置的波束在340GHz时可实现5.7°和10.2°的偏转，而反射率为10%，仅为现有传统装置的1/5。所提出的具有优异性能的装置能够快速制造，并应用于太赫兹成像、通信和感知领域，推动太赫兹技术的应用。