基于石墨纳米材料的电磁诱导势阱效应的室温太赫兹探测研究  

Room-temperature THz detection via EIW effect based on graphite nanosheet

作　　者：阎蒋伟 张晓东 周炜[2] 马万里 胡涛[2] 姚娘娟[2] 江林[2] 黄志明[2,3,4] YAN Jiang-Wei;ZHANG Xiao-Dong;ZHOU Wei;MA Wan-Li;HU Tao;YAO Niang-Juan;JIANG Lin;HUANG Zhi-Ming(Department of Applied Physics,Donghua University,Shanghai 201620,China;State Key Laboratory of Infrared Physics,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China;Key Laboratory of Space Active Opto-Electronics Technology,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China;Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou 310024,China)

机构地区：[1]东华大学理学院应用物理系,上海201620 [2]中国科学院,上海技术物理研究所红外物理国家重点实验室,上海200083 [3]中国科学院,上海技术物理研究所空间主动光电技术重点实验室,上海200083 [4]中国科学院大学杭州高等研究院,浙江杭州310024

出　　处：《红外与毫米波学报》2022年第3期551-556,共6页Journal of Infrared and Millimeter Waves

基　　金：Supported by the National Natural Science Foundation of China(61625505,12134016);Chinese Academy of Sciences(ZDBS-LYJSC025);Shanghai Municipal Science and Technology Major Project(2019SHZDZX01)。

摘　　要：基于石墨纳米材料,成功制备金属-石墨-金属结构电磁诱导势阱效应室温太赫兹探测器,实现了高性能的室温太赫兹探测。器件在0.035 THz的响应率达到20 kV/W,在0.1673 THz的响应率达到11 kV/W,器件在0.035 THz的噪声等效功率达到1.25pW/√Hz,在0.1673 THz的噪声等效功率达到2.27pW/√Hz。我们的研究结果为石墨烯太赫兹探测器提供新的思路。We demonstrate a room-temperature sub-terahertz photoconductive detector based on graphite nanosheet(GN)using electromagnetic induced well(EIW)effect produced in the metal-GN-metal structure.The detector achieves high performance of room-temperature THz detection.It shows a responsivity of over 20 kV/W at 0.035 THz and 11 kV/W at 0.1673 THz,as well as NEP of about 1.25 pW/Hz^(1/2)at 0.035 THz and 2.27 pW/Hz^(1/2)at 0.1673 THz,respectively.The results open up a new idea for graphene-based THz detection.

关 键 词：红外物理 太赫兹探测 光电导 电磁诱导势阱效应 石墨纳米片 

分 类 号：O511[理学—低温物理] O782[理学—物理]