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A cold 87Rb atomic beam |
Wang Xiao-Jia(王晓佳)a)b), Feng Yan-Ying(冯焱颖) b)c)†, Xue Hong-Bo(薛洪波)b), Zhou Zhao-Ying(周兆英)b), and Zhang Wen-Dong(张文栋)a) |
a Key Laboratory of Instrumentation Science and Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China; b State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China; c Joint Institute of Measurement Science (JMI), National Institute of Metrologia–Tsinghua University, Beijing 100084, China |
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Abstract We demonstrate an experimental setup for the production of a beam source of cold 87Rb atoms. The atoms are extracted from a trapped cold atomic cloud in an unbalanced three-dimensional magneto-optical trap. Via a radiation pressure difference generated by a specially designed leak tunnel along one trapping laser beam, the atoms are pushed out continuously with low velocities and a high flux. The most-probable velocity in the beam is varied from 9 m/s to 19 m/s by varying the detuning of the trapping laser beams in the magneto-optical trap and the flux can be tuned up to 4×109 s-1 by increasing the intensity of the trapping beams. We also present a simple model for describing the dependence of the beam performance on the magneto-optical trap trapping laser intensity and the detuning.
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Received: 29 June 2011
Revised: 24 September 2011
Accepted manuscript online:
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PACS:
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67.85.-d
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(Ultracold gases, trapped gases)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 50775127), the Major State Basic Research Development Program of China (Grant No. 2010CB922901), and the Independent Research Projects of Tsinghua University, China (Grant No. 2009THZ06). |
Cite this article:
Wang Xiao-Jia(王晓佳), Feng Yan-Ying(冯焱颖), Xue Hong-Bo(薛洪波), Zhou Zhao-Ying(周兆英), and Zhang Wen-Dong(张文栋) A cold 87Rb atomic beam 2011 Chin. Phys. B 20 126701
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[1] |
Kasevich M A, Riis E, Chu S and de Voe R G 1989 Phys. Rev. Lett. 63 612
|
[2] |
Oates C W, Vogel K R and Hall J L 1996 Phys. Rev. Lett. 76 2866
|
[3] |
Adams C S, Sigel and Mlynek J 1994 Phys. Rep. 240 143
|
[4] |
Behringer R E, Natarajan V and Timp G 1996 Appl. Phys. Lett. 68 1034
|
[5] |
Anderson M H, Ensher J R, Matthews M R, Wieman C E and Cornell E A 1995 Science 269 198
|
[6] |
Buell W F 1998 Laser Part. Beams 16 627
|
[7] |
Lee H S, Park S E, Kwon T Y, Yang S H and Cho H 2001 IEEE Trans. Instrum. Meas. 50 531
|
[8] |
Slowe C, Vernac L and Hau L V 2005 Rev. Sci. Instrum. 76 103101
|
[9] |
Bell S C, Junker M, Jasperse M, Turner L D, Lin Y J, Spielman I B and Scholten R E 2010 Rev. Sci. Instrum. 81 013105
|
[10] |
Balykin V I, Letokhov V S and Mushin V I 1979 JETP Lett. 29 560
|
[11] |
Riis E, Weiss D S, Moler K A and Chu S 1990 Phys. Rev. Lett. 64 1658
|
[12] |
Dieckmann K, Spreeuw R J C, Weidemüller M and Walraven J T M 1998 Phys. Rev. A 58 3891
|
[13] |
Kim K H, Lee K I and Noh H R 2001 Phys. Rev. A 64 013402
|
[14] |
Kohel J M, Ramirez-Serrano J and Thompson R J 2003 J. Opt. Soc. Am. B 20 1161
|
[15] |
Schoser J, Batär A and Löw R 2002 Phys. Rev. A 66 023410
|
[16] |
Lu Z T, Corwin K L and Renn M J 1996 Phys. Rev. Lett. 77 3331
|
[17] |
Feng Y Y, Zhu C X, Wang X J, Xue H B, Ye X Y and Zhou Z Y 2009 Chin. Phys. B 18 3373
|
[18] |
Metcalf H J and van der Straten P 1999 Laser Cooling and Trapping (New York: Springer-Verlag) p. 32
|
[19] |
Monroe C, Swann W, Robinson H and Wieman C 1990 Phys. Rev. Lett. 65 1571
|
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