Multiplexed direct-frequency-comb Vernier spectroscopy of carbon dioxide 2ν1 + ν3 ro-vibrational combination band

被引：8
|
作者：
de Cumis, M. Siciliani [1 ]
Eramo, R. [2 ,3 ]
Coluccelli, N. [4 ,5 ]
Galzerano, G. [4 ,5 ]
Laporta, P. [4 ,5 ]
Pastor, P. Cancio [2 ,3 ]
机构：
[1] Agenzia Spaziale Italiana, Contrada Terlecchia, Matera, Italy
[2] Univ Firenze, Dipartimento Fis, Ist Nazl Ott CNR, Via N Carrara 1, Sesto Fiorentino, Italy
[3] European Lab Nonlinear Spect, Via N Carrara 1, Sesto Fiorentino, Italy
[4] Politecn Milan, Dipartimento Fis, Piazza Leonardo da Vinci 32, Milan, Italy
[5] CNR, Ist Foton & Nanotecnol, Piazza Leonardo da Vinci 32, Milan, Italy
来源：
JOURNAL OF CHEMICAL PHYSICS | 2018年 / 148卷 / 11期
关键词：
SPECTROMETER; ACCURATE; GROWTH;
D O I：
10.1063/1.5008461
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We investigated a set of nineteen (CO2)-C-12-O-16 transitions of the 2 nu(1) + nu(3) ro-vibrational band in the spectral region from 5064 to 5126 cm(-1) at different pressures, using frequency-comb Vernier spectroscopy. Our spectrometer enabled the systematic acquisition of molecular absorption profiles with high precision. Spectroscopic parameters, namely, transition frequency, linestrength, and self-pressure broadening coefficient, have been accurately determined by using a global fit procedure. These data are in agreement with theoretical values contained in HITRAN2016 database [I. E. Gordon et al., J. Quant. Spectrosc. Radiat. Transfer 203, 3-69 (2017)] at the same precision level. A moderate improvement of the line intensity determinations, by a factor 1.5 in the best case [P(10) transition at 5091.6 cm(-1)], should be noticed, projecting direct-comb-Vernier-spectroscopy as an adequate tool for spectral intensity calibration. Published by AIP Publishing.
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页数：8
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