A well-collimated quasi-continuous atom laser

被引：429
|
作者：
Hagley, EW [1 ]
Deng, L
Kozuma, M
Wen, J
Helmerson, K
Rolston, SL
Phillips, WD
机构：
[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA
[2] Georgia So Univ, Statesboro, GA 30460 USA
[3] Univ Tokyo, Inst Phys, Tokyo 1538902, Japan
来源：
SCIENCE | 1999年 / 283卷 / 5408期
关键词：
D O I：
10.1126/science.283.5408.1706
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
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.
引用
收藏
页码：1706 / 1709
页数：4
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