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

Mikołaj Zaborowski (1) , Piotr Wcisło (1) , Franck Thibault (2) , Szymon Wójtewicz (1) , Agata Cygan (1) , Grzegorz Kowzan (1) , Piotr Masłowski (1) , Daniel Lisak (1) , Roman Ciuryło (1)

1 Nicolaus Copernicus University [Toruń]
2 IPR - Institut de Physique de Rennes

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.

Keywords: Quantum dynamics; Cold and ultra-cold collisions; Molecular physics; Line profiles; Atomic and molecular collisions

Domains: Physics [physics]

Mikołaj Zaborowski, Piotr Wcisło, Franck Thibault, Szymon Wójtewicz, Agata Cygan, et al.. Ultra accurate measurements and ab initio calculations of collisional effects in pure D2 .. Journal of Physics: Conference Series, 2017, 810, pp.012042. ⟨10.1088/1742-6596/810/1/012042⟩. ⟨hal-01518501⟩