Ultra accurate measurements and ab initio calculations of collisional effects in pure D2.

23rd International Conference on Spectral Line Shapes

Zaborowski, Mikolaj^1 ; Wcislo, Piotr^1 ; Thibault, Franck^2 ; Wójtewicz, Szymon^1 ; Cygan, Agata^1 ; Kowzan, Grzegorz^1 ; Maslowski, Piotr^1 ; Lisak, Daniel^1 ; Ciurylo, Roman^1

Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, Torun

87-100, Poland^1

Institut de Physique de Rennes, UMR CNRS 6251, Université de Rennes 1, Campus de Beaulieu, Bat.11B, Rennes

F-35042, France^2

关键词: Ab initio calculations;    Accurate measurement;    Cavity ring down spectroscopies;    Collisional broadening;    Collisional effects;    Experimental spectra;    Optical frequency combs;    Quantum scattering;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/810/1/012042/pdf
DOI  :  10.1088/1742-6596/810/1/012042

来源: IOP

【 摘 要 】

We present our experimental spectra of the very weak S(2) transition from the 2-0 band of molecular deuterium, measured with a frequency-stabilized cavity ring-down spectroscopy (FS-CRDS) assisted by the optical frequency comb (OFC). Experimental collisional broadening and shifting are compared with results of ab initio quantum scattering calculations.