High sensitivity CW-cavity ring down spectroscopy of N 2 O near 1 . 5 l m ( III )
High sensitivity CW-cavity ring down spectroscopy of N 2 O near 1 . 5 l m ( III )
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1 附近 N 2 O 的高灵敏度 CW 腔衰荡光谱。
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
A. Campargue
中科院分区：
文献类型：
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作者：
A. Liu;S. Kassi;V. Perevalov;S. M. Hu;A. Campargue
我们提出的第三部分的研究的高灵敏度吸收光谱的一氧化二氮的CW腔衰荡光谱在1.5 lm附近。在前两个贡献（A。Liu等人，J. Mol.光谱分析244（2007）33-47和A. Liu等人，J. Mol.光谱分析244（2007）48-62），将五种同位素体（N2 O、NNO、NNO、N2 O和N2 O）的9000多个谱线位置旋转振动地分配到总共115个谱带，其中大多数是新检测到的。实现的灵敏度（阿明3 - 10 - 10厘米）允许检测线强度弱于2 - 10 - 29厘米/分子。在这方面的贡献，调查区域扩大到7066厘米。基于有效哈密顿模型的预测的分析已允许分配约1500跃迁到17，1，2和1带的N2 O，NNO，NNO和N2 O同位素物，分别。这21个波段中有11个是新报道的，而对其他大多数波段的跃迁观测则扩展到更高的J值。的频带的频带分析允许再现的实验不确定性（约1 - 10 - 3厘米）内的测量线的位置，并确定相应的光谱参数。详细分析了N_2O三个振动带的振转微扰。2008年爱思唯尔公司All rights reserved.
We present the third part of the investigation of the high sensitivity absorption spectrum of nitrous oxide by CW-Cavity Ring Down Spectroscopy near 1.5 lm. In the two first contributions (A. Liu, et al., J. Mol. Spectrosc. 244 (2007) 33–47 and A. Liu, et al., J. Mol. Spectrosc. 244 (2007) 48–62) devoted to the 5905–6833 cm 1 region, more than 9000 line positions of five isotopologues (N2O, NNO, NNO, N2O and N2O), were rovibrationally assigned to a total of 115 bands, most of them being newly detected. The achieved sensitivity (amin 3 10 10 cm ) allowed for the detection of lines with intensity weaker than 2 10 29 cm/molecule. In this contribution, the investigated region was extended up to 7066 cm . The analysis based on the predictions of the effective Hamiltonian model has allowed assigning about 1500 transitions to 17, 1, 2 and 1 bands of the N2 O, NNO, NNO and N2O isotopologues, respectively. Eleven of these 21 bands are newly reported, while the observations of the transitions are extended to higher J values for most of the others. The band by band analysis has allowed reproducing the measured line positions within the experimental uncertainty (about 1 10 3 cm ) and determining the corresponding spectroscopic parameters. A detailed analysis of the rovibrational perturbations affecting three bands of N2O is presented. 2008 Elsevier Inc. All rights reserved.