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A Well Collimated Quasi-Continuous Atom Laser

Published

Author(s)

Edward W. Hagley, Lu Deng, M M. Kozuma, J Wen, Kristian Helmerson, S L. Rolston, William D. Phillips

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.
Citation
Science
Volume
283
Issue
No. 5408

Keywords

atom laser, Bose-Einstein condensation, Raman output coupler
Created March 1, 1999, Updated November 10, 2018