Absorption spectroscopy of ammonia between 6526 and 6538 cm-1

被引:22
作者
Jia, Hui [1 ]
Zhao, Weixiong [1 ]
Cai, Tingdong [1 ]
Chen, Weidong [2 ]
Zhang, Weijun [1 ]
Gao, Xiaoming [1 ]
机构
[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
[2] Univ Littoral Cote dOpale, Lab Phys Chim Atmosphere, F-59140 Dunkerque, France
关键词
Ammonia; Near-infrared spectrum; Off-axis ICOS; Line parameters; CAVITY-OUTPUT SPECTROSCOPY; NEAR-INFRARED REGION; 1.5; MU-M; DIODE-LASER; PHOTOACOUSTIC-SPECTROSCOPY; APPROXIMATION; DATABASE; BAND; NH3;
D O I
10.1016/j.jqsrt.2009.01.002
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The spectral measurements of ammonia absorption lines from 6526 to 6538 cm(-1) have been performed at room temperature by using fiber-coupled distributed feedback (DFB) diode laser operating at 1.531 mu m. As many as 152 lines of ammonia and its line intensities, self-broadening and air-broadening coefficients were obtained, which include many weak lines not previously reported. The 20 strongest lines were obtained using the traditional direct absorption spectroscopy technology with a 30 cm single-path cell and the other 132 lines were acquired using a compact system based on off-axis integrated-cavity output spectroscopy (OA-ICOS) with an effective optical path of 36.62 (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:347 / 357
页数:11
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