中国物理B ›› 2017, Vol. 26 ›› Issue (1): 19501-019501.doi: 10.1088/1674-1056/26/1/019501

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇    

Theoretical and experimental study on broadband terahertz atmospheric transmission characteristics

Shi-Bei Guo(郭拾贝), Kai Zhong(钟凯), Mao-Rong Wang(王茂榕), Chu Liu(刘楚), Yong Xiao(肖勇), Wen-Peng Wang(王文鹏), De-Gang Xu(徐德刚), Jian-Quan Yao(姚建铨)   

  1. 1. Institute of Laser and Opto-electronics, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;
    2. Key Laboratory of Opto-electronics Information Technology(Ministry of Education), Tianjin University, Tianjin 300072, China;
    3. National Key Laboratory of Science and Technology on Millimeter-wave Remote Sensing, Beijing 100039, China
  • 收稿日期:2016-07-31 修回日期:2016-09-17 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Kai Zhong E-mail:zhongkai1984@gmail.com
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant Nos. 2014CB339802 and 2015CB755403), the National Natural Science Foundation of China (Grant Nos. 61675146, 61275102, and 61271066), and the Science and Technology Support Program of Tianjin, China (Grant No. 14ZCZDGX00030).

Theoretical and experimental study on broadband terahertz atmospheric transmission characteristics

Shi-Bei Guo(郭拾贝)1,2, Kai Zhong(钟凯)1,2, Mao-Rong Wang(王茂榕)1,2, Chu Liu(刘楚)1,2, Yong Xiao(肖勇)3, Wen-Peng Wang(王文鹏)3, De-Gang Xu(徐德刚)1,2, Jian-Quan Yao(姚建铨)1,2   

  1. 1. Institute of Laser and Opto-electronics, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;
    2. Key Laboratory of Opto-electronics Information Technology(Ministry of Education), Tianjin University, Tianjin 300072, China;
    3. National Key Laboratory of Science and Technology on Millimeter-wave Remote Sensing, Beijing 100039, China
  • Received:2016-07-31 Revised:2016-09-17 Online:2017-01-05 Published:2017-01-05
  • Contact: Kai Zhong E-mail:zhongkai1984@gmail.com
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant Nos. 2014CB339802 and 2015CB755403), the National Natural Science Foundation of China (Grant Nos. 61675146, 61275102, and 61271066), and the Science and Technology Support Program of Tianjin, China (Grant No. 14ZCZDGX00030).

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摘要： Broadband terahertz (THz) atmospheric transmission characteristics from 0 to 8 THz are theoretically simulated based on a standard Van Vleck-Weisskopf line shape, considering 1696 water absorption lines and 298 oxygen absorption lines. The influences of humidity, temperature, and pressure on the THz atmospheric absorption are analyzed and experimentally verified with a Fourier transform infrared spectrometer (FTIR) system, showing good consistency. The investigation and evaluation on high-frequency atmospheric windows are good supplements to existing data in the low-frequency range and lay the foundation for aircraft-based high-altitude applications of THz communication and radar.

关键词: terahertz atmospheric propagation, line absorption, continuum absorption

Abstract: Broadband terahertz (THz) atmospheric transmission characteristics from 0 to 8 THz are theoretically simulated based on a standard Van Vleck-Weisskopf line shape, considering 1696 water absorption lines and 298 oxygen absorption lines. The influences of humidity, temperature, and pressure on the THz atmospheric absorption are analyzed and experimentally verified with a Fourier transform infrared spectrometer (FTIR) system, showing good consistency. The investigation and evaluation on high-frequency atmospheric windows are good supplements to existing data in the low-frequency range and lay the foundation for aircraft-based high-altitude applications of THz communication and radar.

Key words: terahertz atmospheric propagation, line absorption, continuum absorption

中图分类号:  (Far infrared (10-300 μm))

  • 95.85.Gn
92.60.Ta (Electromagnetic wave propagation) 42.68.Ay (Propagation, transmission, attenuation, and radiative transfer)