光学学报, 2018, 38 (3): 0304001, 网络出版: 2018-03-20
滤波器增强的高灵敏度室温HEMT太赫兹探测器 下载: 992次
Filter-Enhanced High-Sensitivity HEMT Terahertz Detector at Room Temperature
图 & 表
图 1. 自混频探测器的工作原理图[24]
Fig. 1. Working principle of detector based on self-mixing mechanism[24]
图 2. (a)~(c)不同器件的结构因子;(d)滤波器的SEM图
Fig. 2. (a)-(c) Structure factors of different devices; (d) SEM image of filter
图 6. 探测器的光电响应曲线。(a)G和dG/dVg随栅压的变化曲线;(b)探测器的光电流随栅压的变化曲线;(c)探测器的功率响应曲线
Fig. 6. Photoelectric response of detector. (a) G and dG/dVg versus gate voltage; (b) photo current versus gate voltage; (c) power response of detector
图 8. 太赫兹扫描成像示意图。(a)透射成像;(b)反射成像
Fig. 8. Schematic of THz scanning imaging. (a) Transmission imaging; (b) reflection imaging
图 9. 透射扫描成像。(a)钥匙、火柴和别针;(b)干树叶
Fig. 9. Transmission scanning imaging. (a) Key, match and pin; (b) dry leaf
孙云飞, 陶重犇, 孙建东, 秦华, 班建民, 罗恒. 滤波器增强的高灵敏度室温HEMT太赫兹探测器[J]. 光学学报, 2018, 38(3): 0304001. Sun Yunfei, Tao Chongben, Sun Jiandong, Qin Hua, Ban Jianmin, Luo Heng. Filter-Enhanced High-Sensitivity HEMT Terahertz Detector at Room Temperature[J]. Acta Optica Sinica, 2018, 38(3): 0304001.