|
|
|
|
|
|
| Study on the Measurement of Absolute Spectral Responsivity of Terahertz Detector |
| LIU Hong-yuan1, WU Bin1, 2, JIANG Tao3, YANG Yan-zhao1, WANG Hong-chao1, LI Jing-song1 |
1. The 41st Research Institute of CETC, Qingdao 266555, China
2. Science and Technology on Electronic Test & Measurement Laboratory, Qingdao 266555, China
3. Ceyear Technologies Co., Ltd., Qingdao 266555, China
|
|
|
|
|
Abstract Absolute spectral responsivity is one of the important technical parameters of detectors. With the development of terahertz detection technology, it is becoming increasingly important to measure the absolute spectral responsivity of terahertz detectors accurately. Due to the lack of a continuously tunable terahertz light source and spectroscopic system in the terahertz band, the traditional method of measuring the spectral responsivity of ultraviolet, visible and infrared detectors can not be used to measure the spectral responsivity of terahertz detectors. In this paper, the relative spectral responsivity of 2~10 THz is measured based on the reflection method, and CO2 measures the absolute responsivity of 2.52 and 4.25 THz pumped gas laser as the light source, and the absolute spectral responsivity of 2~10 THz is obtained. The two frequency points of THz absolute responsivity and relative spectral responsivity are mutually verified. The ratio of absolute responsivity measurements at 2.52 and 4.25 THz is 0.753, and the ratio of relative spectral response measurements is 0.749. The difference between the two is only 0.004. Therefore, the reflection method used in the article to measure the relative spectral response of the terahertz detector is feasible. In addition, the test of water vapor in the terahertz band has a great influence. This article tests the attenuation characteristics of the atmosphere in the 1.5~10 THz band. The test shows that water vapor has a significant attenuation effect on the terahertz wave. When measuring different environmental humidity Will produce different results, so the humidity of the atmosphere needs to be strictly controlled during the measurement process of the terahertz detector. Especially before the 3.3 THz band, due to its weak signal, if the water vapor is too large or changes greatly during the test, the testing effect will be seriously affected. The system can satisfy terahertz detectors’ development, production, detection and application. It can guide material selection, process improvement, data compensation, optical system design and image processing, and promote the effectiveness of terahertz weapons and equipment. Therefore, the measurement of the absolute spectral response of the terahertz detector is very important for device designers, imaging equipment system designers and device users.
|
|
Received: 2022-02-11
Accepted: 2022-06-22
|
|
|
|
[1] WANG Yi-feng，MAO Jing-xiang(王忆锋, 毛京湘). Electro-Optic Technology Application(光电技术应用）, 2008, 23(1): 1.
[2] WANG Rui-jun, WANG Hong-qiang, ZHUANG Zhao-wen，et al (王瑞君, 王宏强, 庄钊文, 等). Laser & Optoelectronics Progress(激光与光电子学进展), 2013, 50(4)：040001.
[3] YANG Guang-kun, YUAN Bin, XIE Dong-yan, et al(杨光鲲, 袁 斌, 谢东彦, 等). Laser & Infrared(激光与红外), 2011, 41(4): 376.
[4] WU Gang, TANG Li-bin, HAO Qun, et al(吴 刚, 唐利斌, 郝 群, 等). Infrared Technology(红外技术), 2018, 40(6): 513.
[5] YAN Feng，ZHOU Yue, ZHANG Ming-chao, et al（闫 丰, 周 跃, 章明朝, 等）. Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2013, 33(10)：2865.
[6] CHEN Yu, HE Xiang-rong, SHAO Xiu-mei, et al(陈 郁, 贺香荣, 邵秀梅, 等). Optics & Optoelectronic Technology(光学与光电技术), 2013, 11(6）：25.
[7] ZHANG Yong-gang, ZHOU Li, GU Yi, et al(张永刚, 周 立, 顾 溢, 等). J. Infrared Millim. Waves(红外与毫米波学报), 2015, 34(6): 737.
[8] HE Xiang-rong, ZHANG Ya-ni, WANG Yang(贺香荣, 张亚妮, 汪 洋). Optics & Optoelectronic Technology(光学与光电技术) , 2014, 12(2): 79.
[9] SHAO Xiu-mei, CHEN Yu, CHEN Xin-yu(邵秀梅, 陈 郁, 陈新禹). Spaceraft Environment Engineering(航天器环境工程), 2010, 27(2)：169.
[10] Liu Hongyuan, Ying Chengping, Wang Hongchao, et al. SPIE，2016, 10255: 102553E.
[11] LIU Chang-ming, SHI Xue-shun, CHEN Hai-dong, et al(刘长明, 史学舜, 陈海东, 等). Acta Photonica Sinica(光子学报), 2016, 45(9): 0912002.
[12] Deng Yuqiang, Sun Qing, Yu Jing, et al. Optics Express, 2013, 21(5): 5737.
[13] Deng Yuqiang, Li Jianwei, Sun Qing. IEEE J. Selected Topics in Quantum Electronics, 2017, 23(4): 3800306.
|
| [1] |
PENG Wei, YANG Sheng-wei, HE Tian-bo, YU Ben-li, LI Jin-song, CHENG Zhen-biao, ZHOU Sheng*, JIANG Tong-tong*. Detection of Water Vapor Concentration in Sealed Medicine Bottles Based on Digital Quadrature Phase-Locked Demodulation Algorithm and TDLAS
Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 698-704. |
| [2] |
YANG Shan, CAI Xiu-qin, LIU Yu-han, WANG Wei. A Simple Measuring Method for Infrared Spectroscopy of Liquid Matters[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(07): 2143-2147. |
| [3] |
YANG Tian-hang 1, 2, 3, GU Ming-jian1, 2*, HU Xiu-qing4, WU Chun-qiang4, QI Cheng-li4，SHAO Chun-yuan1, 2. Tropospheric 3D Winds Measurement Based on Cross-Platform Infrared Hyperspectral Observation[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(04): 1131-1137. |
| [4] |
YANG Shan, CAI Xiu-qin, ZHANG Yi-feng. A Comparative Study on the ATR and TR Methods of Infrared Spectroscopy of Solid Matters[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(09): 2775-2780. |
| [5] |
TAN Min1, 2, 3, WANG Bang-xin1, 2, 3*, ZHUANG Peng1, 2, 3, ZHANG Zhan-ye1, 2, 3, LI Lu1, 2, 3, CHU Yu-fei1, 2, 3, XIE Chen-bo1, 2, WANG Ying-jian1, 2. Study on Atmospheric Temperature and Water-Vapor Mixing Ratio Based on Raman Lidar[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(05): 1397-1401. |
| [6] |
ZHENG Xu-gang1, 2, SONG Dan-dan1, 2, ZHAO Su-ling1, 2, QIAO Bo1, 2, SHEN Chong-yu3, XU Zheng1, 2*. Effect of Water Vapor Treatment on the Performance of Quantum Dot Light-Emitting Diodes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(04): 1034-1039. |
| [7] |
GU Xiao-qin, PANG Hong-xi*, LI Ya-ju, ZHANG Wang-bin, WANG Jia-jia. Study on Calibration Method for Atmospheric Water Vapor Stable Isotopes Observed by Cavity Ring-Down Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(06): 1700-1705. |
| [8] |
ZHANG Shang-lu1, 2, HUANG Yin-bo1, LU Xing-ji1, 2, CAO Zhen-song1, DAI Cong-ming1*, LIU Qiang1, GAO Xiao-ming1, RAO Rui-zhong1, WANG Ying-jian1. Retrieval of Atmospheric H2O Column Concentration Based on Mid-Infrared Inter-Band Cascade Laser Heterodyne Radiometer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(04): 1317-1322. |
| [9] |
ZHAO Qiang, DENG Shu-mei, LIU Chang-yu, SHU Ying, LI Wei-hua, YANG Wan-qing. Simultaneous Retrieval of Atmospheric Profiles, Surface Temperature and Surface Emissivity in Different Types of Earth Surface Using Hyperspectral Infrared Satellite Data[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(03): 693-697. |
| [10] |
HONG Guang-lie1, LI Jia-tang2, KONG Wei1*, SHU Rong1. Summarization of Differential Absorption Liadr for Profiling Atmospheric Water Vapor Overseas[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(02): 340-348. |
| [11] |
WANG Xin1, 2, Lü Shi-long2, CHEN Xia3. Automatic Algorithm for Water Vapor Compensation of Gas Spectra Through Iterative Least Square Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(01): 20-25. |
| [12] |
SHI Dong-chen，HUA Deng-xin*，LEI Ning, GAO Fei, WANG Li, YAN Qing, ZHOU Yi. Research of Solar-Blind Ultraviolet Raman Lidar for Water Vapor Measurement Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(05): 1430-1436. |
| [13] |
YU Min-xing1, WANG Hai-shui1*, ZHANG Yun-hong2*. Limitations of Spectral Subtraction in the Elimination of Infrared Water Vapor Bands[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(06): 1673-1677. |
| [14] |
ZHOU Sheng1, 2, HAN Yan-ling1, LI Bin-cheng1, 3* . Trace Moisture Measurement with 5.2 μm Quantum Cascade Laser Based Continuous-Wave Cavity Ring-Down Spectroscopy [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(12): 3848-3852. |
| [15] |
ZHANG Tian-long1, WEI Jing1*, GAN Jing-min1, ZHU Qian-qian2, YANG Dong-xu2 . Precipitable Water Vapor Retrieval with MODIS Near Infrared Data [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(08): 2378-2383. |
|
|
|
|
