| 基于太赫兹时域光谱技术的水蒸气传输特性研究 |
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| 引用本文： | 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):20-24. |
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| 作者姓名： | 周逊 邓琥 罗振飞 王度 |
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| 作者单位： | 1. 中国工程物理研究院激光聚变研究中心,四川 绵阳 621900;中国工程物理研究院太赫兹科学技术研究中心,四川 成都 610000
2. 西南科技大学信息工程学院,四川 绵阳,621010 |
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| 基金项目： | 国家自然科学基金项目(11176032)；四川省教育厅科技项目(12ZB337) |
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| 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0.1～2 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0.1～2THz频率范围内的吸收谱、传输率和弱衰减窗口。
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| 关 键 词： | 太赫兹时域光谱技术 水蒸气 吸收谱 传输率 窗口 |
| 收稿时间： | 2013/4/27 0:00:00 |
| 修稿时间： | 5/6/2013 12:00:00 AM |
Study of Transmission Characteristics of Water Vapor Based on Terahertz Time--domain Spectroscopy |
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| Zhou Xun,Deng Hu,Lou Zhenfei and Wang Du.Study of Transmission Characteristics of Water Vapor Based on Terahertz Time--domain Spectroscopy[J].Infrared,2013,34(6):20-24. |
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| Authors: | Zhou Xun Deng Hu Lou Zhenfei and Wang Du |
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| Affiliation: | Research Center of Laser Fusion,Chinese Academy of Engineering Physics,School of Information Engineering,Southwest University of Science and Technology,Research Center of Laser Fusion,Chinese Academy of Engineering Physics,Research Center of Laser Fusion,Chinese Academy of Engineering Physics |
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| 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. |
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| Keywords: | THz-TDS water vapor absorption spectrum transmission rate window |
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