红外, 2013, 34 (6): 20, 网络出版: 2013-06-25
基于太赫兹时域光谱技术的水蒸气传输特性研究
Study of Transmission Characteristics of Water Vapor Based on Terahertz Time-domain Spectroscopy
摘要
为了评估太赫兹波在空间通信、雷达、遥感等方面的潜在应用,需要研究太赫兹波在大气中的传输特性。 由于0.12 THz的太赫兹波在大气中传输的主要衰减来自水蒸气,采用太赫兹时域光谱技术 (THz Time-Domain Spectroscopy, THz-TDS),在2 m长的太赫兹传输行程中对不同湿度的空气进行 了透射光谱测量,获得了水蒸气在0.12 THz频率范围内的吸收谱、传输率和弱衰减窗口。
Abstract
To assess the potential applications of terahertz waves in space communication, radar and remote sensing, the transmission characteristics of terahertz waves in atmosphere should be studied. As the transmission attenuation of terahertz wave in the range from 0.1 to 2 THz are caused mainly by water vapor, the THz Time-Domain Spectroscopy (THz-TDS) is used to measure the transmission spectra of the air with different humidity in a 2 m long THz transmission path. The absorption spectra, transmission rate and weak attenuation widows of water vapor in the frequency range from 0.1 to 2 THz are obtained.
周逊, 邓琥, 罗振飞, 王度. 基于太赫兹时域光谱技术的水蒸气传输特性研究[J]. 红外, 2013, 34(6): 20. ZHOU Xun, DENG Hu, LOU Zhen-fei, WANG Du. Study of Transmission Characteristics of Water Vapor Based on Terahertz Time-domain Spectroscopy[J]. INFRARED, 2013, 34(6): 20.