基于狄拉克半金属的太赫兹探测器研究进展简介

Introduction of Dirac semimetal-based terahertz detectors

摘要:

太赫兹波具有安全性好、透射性强、指纹特性等特点，在无损探测、雷达成像、空间通信等领域展现出巨大的应用前景，在现阶段的科学研究中热度不减。狄拉克半金属具有量子反常霍尔效应、零带隙受拓扑保护和超高迁移率等特性，在太赫兹探测领域展现出非凡特性，为探索实现室温太赫兹探测提供了新思路。本文介绍了基于狄拉克半金属材料太赫兹光电探测器的研究现状，讨论了器件性能与探测机理，并对其在太赫兹光电探测领域的发展前景进行了展望。

Abstract:

Due to the characteristics of good security, strong transmittance, and fingerprint characteristics, terahertz radiation has shown great application prospects in the fields of non-destructive detection, radar imaging, space communication, etc., which makes it unabated in current scientific research. With the characteristics of quantum anomalous Hall effect, topological protection of zero band gap, ultra-high carrier mobility, etc., the Dirac semimetals exhibit extraordinary characteristics in the field of terahertz detection, which provides a great platform for the exploration and realization of room temperature terahertz detector. In this paper, the research status of terahertz photodetectors based on the Dirac semimetal materials is introduced, and the device performance and detection mechanism are mainly discussed.