Laser cooling and slowing of CaF molecules

Autor: Zhelyazkova, V., Cournol, A., Wall, T. E., Matsushima, A., Hudson, J. J., Hinds, E. A., Tarbutt, M. R., Sauer, B. E.
Rok vydání: 2013
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevA.89.053416
Popis: We demonstrate slowing and longitudinal cooling of a supersonic beam of CaF molecules using counter-propagating laser light resonant with a closed rotational and almost closed vibrational transition. A group of molecules are decelerated by about 20 m/s by applying light of a fixed frequency for 1.8 ms. Their velocity spread is reduced, corresponding to a final temperature of about 300 mK. The velocity is further reduced by chirping the frequency of the light to keep it in resonance as the molecules slow down.
Comment: 6 pages, 6 figures
Databáze: arXiv