Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5428064 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2015 | 10 Pages |
â¢Line-shape parameters and intensities of 11 lines determined with subpercent accuracy.â¢CRDS spectrometer with optical frequency comb disciplined by GPS used.â¢Speed-dependent effects and Dicke narrowing included in data analysis.â¢Soft- and hard-collisions model applied for velocity changing collisions.â¢Absolute frequencies of the transitions determined with 150 kHz accuracy.
We present the line-shape parameters for the first 11 lines of the oxygen B-band R-branch self-broadened transitions measured at low pressures by the Pound-Drever-Hall-locked frequency-stabilized cavity ring-down spectrometer (PDH-locked FS-CRDS) linked to the optical frequency comb. The collisional self-broadening, shifting and narrowing parameters were determined together with the quadratic speed-dependence as well as phase- and velocity-changing correlations parameters. The absolute frequencies of the transitions with combined standard uncertainties below 150Â kHz are reported. Dependence of line parameters on choice of the line-shape model is discussed.