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High Precision cavity ring down spectroscopy of 6v3 overtone band of 14N216O near 775 nm
刘安雯
Author NameAffiliationE-mail
刘安雯 中国科学技术大学化学物理系 awliu@ustc.edu.cn 
Abstract:
Transitions of the 6v3 overtone band of 14N216O 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 an strong anharmonic interaction identified by the effective Hamiltonian model. The absolute line intensities have also been retrieved with an estimated accuracy of 2% for 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 6v3 band obtained in this work and those from previous studies is given.
Key words:  Nitrous oxide  Cavity ring-down spectroscopy  Vibration-rotation spectroscopy  
FundProject:
High Precision cavity ring down spectroscopy of 6v3 overtone band of 14N216O near 775 nm
刘安雯
摘要:
Transitions of the 6v3 overtone band of 14N216O 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 an strong anharmonic interaction identified by the effective Hamiltonian model. The absolute line intensities have also been retrieved with an estimated accuracy of 2% for 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 6v3 band obtained in this work and those from previous studies is given.
关键词:  Nitrous oxide  Cavity ring-down spectroscopy  Vibration-rotation spectroscopy  
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