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High Precision Cavity Ring Down Spectroscopy of 6υ3 Overtone Band of 14N2 16O near 775 nm
Xiao-qin Zhao,Jin Wang,An-wen Liu*,Ze-yi Zhou,Shui-ming Hu
Author NameAffiliationE-mail
Xiao-qin Zhao Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technol- ogy of China, Hefei 230026, China  
Jin Wang Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technol- ogy of China, Hefei 230026, China  
An-wen Liu* Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technol- ogy of China, Hefei 230026, China awliu@ustc.edu.cn 
Ze-yi Zhou National Institute of Metrology, Beijing 100013, China  
Shui-ming Hu Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technol- ogy of China, Hefei 230026, China  
Abstract:
Transitions of the 6υ3 overtone band of 14N2 16O near 775 nm have been studied by continuous-wave cavity ring-down spectroscopy. Line positions and intensities were derived from a fit of the line shape using a hard-collisional profile. The line positions determined with absolute accuracy of 5×10-4 cm-1 allowed us to reveal finer ro-vibrational couplings taking place after J>14 except a strong anharmonic interaction identified by the effective Hamiltonian model. The absolute line intensities have also been retrieved with an estimated accuracy of 2% for a majority of the unblended lines. A new set of ro-vibrational and dipole moment parameters were derived from the experimental values. A comparison between the line positions and intensities of the 6υ3 band obtained in this work and those from previous studies is given.
Key words:  Nitrous oxide  Cavity ring-down spectroscopy  Vibration-rotation spectroscopy
FundProject:This work was supported by the National Key Basic Research Program of China (2013CB834602 and 2013BAK12B02), and the National Natural Science Foundation of China (No.21473172, No.21411130183, No.21303176).
一氧化二氮分子位于775 nm的6υ3振动泛频跃迁的高精密光腔衰荡光谱
赵小琴,王进,刘安雯*,周泽义,胡水明
摘要:
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DOI:10.1063/1674-0068/30/cjcp1705109
分类号: