29th International Conference on Photonic, Electronic, and Atomic Collisions | |
CRDS investigation of line shapes of the nitrogen-broadened oxygen B-band transition | |
Wójtewicz, S.^1 ; Maslowski, P.^1 ; Cygan, A.^1 ; Wcislo, P.^1 ; Zaborowski, M.^1 ; Piwiski, M.^1 ; Ciurylo, R.^1 ; Lisak, D.^1 | |
Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toru, Grudziadzka 5, Torun | |
87-100, Poland^1 | |
关键词: Cavity ring down; Collisional broadening; Fitting techniques; Line shape parameters; Line-shape model; Optical frequency combs; Pound-Drever-Hall; Speed dependence; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/635/9/092109/pdf DOI : 10.1088/1742-6596/635/9/092109 |
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来源: IOP | |
【 摘 要 】
We present precise line-shape measurements of the nitrogen-broadened P9 P9 oxygen B-band transition occurring near 689 nm. Data were obtained using the optical frequency comb-assisted Pound-Drever-Hall-locked frequency-stabilized cavity ring-down spectrometer. Several line-shape models describing physical effects such as Dicke narrowing, the speed dependence of collisional broadening and shifting, and the correlation between velocity- and phase-changing collisions were used in the analysis. The multispectrum fitting technique is used to minimize correlation between line-shape parameters. Observed line narrowing is mostly determined by the speed dependence of the collisional broadening.
【 预 览 】
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CRDS investigation of line shapes of the nitrogen-broadened oxygen B-band transition | 962KB | download |