Line parameters of the P-branch of (30012) ← (00001) 12C16O2 band measured by comb-assisted, Pound-Drever-Hall locked cavity ring-down spectrometer
- Resource Type
- Authors
- Dong Hewei; Junheng Teng; Ruimin Guo; Tiqiang Zhang; Wang Defa; Dong Li
- Source
- Journal of Quantitative Spectroscopy and Radiative Transfer. 264:107555
- Subject
- Physics
Pound (force)
Radiation
010504 meteorology & atmospheric sciences
Series (mathematics)
Spectrometer
Measure (physics)
Quantum number
01 natural sciences
Atomic and Molecular Physics, and Optics
Cavity ring-down spectroscopy
Atomic physics
Spectroscopy
0105 earth and related environmental sciences
Line (formation)
Leakage (electronics)
- Language
- ISSN
- 0022-4073
This article presents an accurate measurement of line parameters for the P-branch of (30012)←(00001) 12C16O2 band with rotational quantum number extending to -72. The spectrometer has a temperature stability of below 0.5 mK at 296 K and a cavity leakage of 0.068 mTorr/hour. An optical frequency comb is employed to measure the absolute transition frequencies. The measured data are processed using multi-spectrum fitting method with different line-shape models to retrieve line positions, intensities, and other line-shape parameters. The correlation between Dicke narrowing and speed-dependent broadening is studied. The measured parameters are compared to a series of spectroscopic databases and previously published results.