Edward W. Hagley, Lu Deng, M M. Kozuma, J Wen, Kristian Helmerson, S L. Rolston, William D. Phillips
We demonstrate extraction of sodium atoms from a trapped Bose-Einstein condensate (BEC) using a coherent stimulated Raman process. Optical Raman pulses drive transitions between trapped and untrapped magnetic sublevels so as to give the output coupled BEC fraction a well defined momentum. The pulsed output coupling can be run at such a rate that the extracted atomic wavepackets strongly overlap, forming a highly directional, quasi-continuous matter wave.
atom laser, Bose-Einstein condensation, Raman output coupler
, Deng, L.
, Kozuma, M.
, Wen, J.
, Helmerson, K.
, Rolston, S.
and Phillips, W.
A Well Collimated Quasi-Continuous Atom Laser, Science, [online], https://doi.org/10.1126/science.283.5408.1706
(Accessed December 10, 2023)