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Experimental measurement of collision broadening of vibrational-rotational spectral lines 12 C 16 O 2 and 13 C 16 O 2 in the 4860–4880 cm −1 region by diode laser absorption spectroscopy
Laser Physics Letters ( IF 1.4 ) Pub Date : 2020-08-10 , DOI: 10.1088/1612-202x/aba7c3
S V Kireev , A A Kondrashov , M A Rybakov , S L Shnyrev

The experimental measurement of the R(18), R(20), R(22), R(24), R(26), R(28), R(30), R(34), R(36) absorption lines collision broadening for the 12 C 16 O 2 molecule vibrational band 20013–00001 and P(10), P(12), P(14), P(16), P(18), P(20), P(22) absorption lines for the 13 C 16 O 2 molecule 20012–00001 vibrational band have been reported in this paper. The research has been first carried out by the diode laser absorption spectroscopy method using a single-frequency diode laser emitting in the 4860–4880 cm −1 region. The dependences of the absorption constants and cross-sections of these lines on the 13 C 16 O 2 and 12 C 16 O 2 molecules mixture concentrations in the ratio of 1:140 have been studied. The obtained results have been compared with the HITRAN spectroscopic database data.

中文翻译:

利用二极管激光吸收光谱法测量4860-4880 cm -1区域中振动-旋转光谱线12 C 16 O 2和13 C 16 O 2碰撞加宽的实验测量

R(18),R(20),R(22),R(24),R(26),R(28),R(30),R(34),R(36)吸收的实验测量线碰撞扩展了12 C 16 O 2分子振动带20013-00001和P(10),P(12),P(14),P(16),P(18),P(20),P(22) )已经报道了13 C 16 O 2分子20012–00001振动带的吸收线。该研究首先通过二极管激光吸收光谱法进行,该方法使用在4860–4880 cm -1区域内发射的单频二极管激光。研究了这些线的吸收常数和截面对比例为1:140的13 C 16 O 2和12 C 16 O 2分子混合物浓度的依赖性。将获得的结果与HITRAN光谱数据库数据进行了比较。
更新日期:2020-08-11
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