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

相关论文

共 17 条

[1] OBSERVATION OF BOSE-EINSTEIN CONDENSATION IN A DILUTE ATOMIC VAPOR [J].

ANDERSON, MH ;

ENSHER, JR ;

MATTHEWS, MR ;

WIEMAN, CE ;

CORNELL, EA .

SCIENCE, 1995, 269 (5221) :198-201

[2] Observation of interference between two Bose condensates [J].

Andrews, MR ;

Townsend, CG ;

Miesner, HJ ;

Durfee, DS ;

Kurn, DM ;

Ketterle, W .

SCIENCE, 1997, 275 (5300) :637-641

[3] Bose-Einstein condensation of lithium: Observation of limited condensate number [J].

Bradley, CC ;

Sackett, CA ;

Hulet, RG .

PHYSICAL REVIEW LETTERS, 1997, 78 (06) :985-989

[4] Theory of Bose-Einstein condensation in trapped gases [J].

Dalfovo, F ;

Giorgini, S ;

Pitaevskii, LP ;

Stringari, S .

REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512

[5] BOSE-EINSTEIN CONDENSATION IN A GAS OF SODIUM ATOMS [J].

DAVIS, KB ;

MEWES, MO ;

ANDREWS, MR ;

VANDRUTEN, NJ ;

DURFEE, DS ;

KURN, DM ;

KETTERLE, W .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :3969-3973

[6]

EDWARDS MA, IN PRESS J PHYS B

[7]

Einstein A, 1925, SITZBER PREUSS AKAD, P3

[8]

Einstein A, 1924, SITZBER PREUSS AKAD, P261

[9] Cold collision frequency shift of the 1S-2S transition in hydrogen [J].

Killian, TC ;

Fried, DG ;

Willmann, L ;

Landhuis, D ;

Moss, SC ;

Greytak, TJ ;

Kleppner, D .

PHYSICAL REVIEW LETTERS, 1998, 81 (18) :3807-3810

[10] Coherent splitting of Bose-Einstein condensed atoms with optically induced Bragg diffraction [J].

Kozuma, M ;

Deng, L ;

Hagley, EW ;

Wen, J ;

Lutwak, R ;

Helmerson, K ;

Rolston, SL ;

Phillips, WD .

PHYSICAL REVIEW LETTERS, 1999, 82 (05) :871-875