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|Author(s):||Edward W. Hagley; Lu Deng; M M. Kozuma; J Wen; Kristian Helmerson; S L. Rolston; William D. Phillips;|
|Title:||A Well Collimated Quasi-Continuous Atom Laser|
|Published:||March 01, 1999|
|Abstract:||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.|
|Keywords:||atom laser,Bose-Einstein condensation,Raman output coupler|
|PDF version:||Click here to retrieve PDF version of paper (310KB)|