A well-collimated quasi-continuous atom laser

E. W. Hagley, L. Deng, M. Kozuma, J. Wen, K. Helmerson, S. L. Rolston, W. D. Phillips

Research output: Contribution to journalArticleResearchpeer-review

460 Citations (Scopus)


Extraction of sodium atoms from a trapped Bose-Einstein condensate (BEC) by a coherent, stimulated Raman process is demonstrated. Optical Raman pulses drive transitions between trapped and untrapped magnetic sublevels, giving the output-coupled BEC fraction a well-defined momentum. The pulsed output coupling can be run at such a rate that the extracted atomic wave packets strongly overlap, forming a highly directional, quasi-continuous matter wave.

Original languageEnglish
Pages (from-to)1706-1709
Number of pages4
Issue number5408
Publication statusPublished - 12 Mar 1999
Externally publishedYes

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