Intense source of cold cesium atoms based on a two-dimensional magneto-optical trap with independent axial cooling and pushing

doi:10.1088/1674-1056/25/6/063701

Abstract

We report our studies on an intense source of cold cesium atoms based on a two-dimensional (2D) magneto-optical trap (MOT) with independent axial cooling and pushing. The new-designed source, proposed as 2D-HP MOT, uses hollow laser beams for axial cooling and a thin pushing laser beam to extract a cold atomic beam. With the independent pushing beam, the atomic flux can be substantially optimized. The total atomic flux maximum obtained in the 2D-HP MOT is 4.02×10¹⁰ atoms/s, increased by 60 percent compared to the traditional 2D⁺ MOT in our experiment. Moreover, with the pushing power 10 μW and detuning 0Γ, the 2D-HP MOT can generate a rather intense atomic beam with the concomitant light shift suppressed by a factor of 20. The axial velocity distribution of the cold cesium beams centers at 6.8 m/s with an FMHW of about 2.8 m/s. The dependences of the atomic flux on the pushing power and detuning are studied in detail. The experimental results are in good agreement with the theoretical model.

Keywords: cold atomic beam magneto-optical trap light shift

Received: 16 December 2015
Revised: 15 January 2016
Accepted manuscript online:

PACS:	37.10.Gh	(Atom traps and guides)
	37.20.+j	(Atomic and molecular beam sources and techniques)
	37.10.De	(Atom cooling methods)

Fund:

Project supported by the National Natural Science Foundation of China (Grant No. 11304177).

Corresponding Authors: Li-Jun Wang
E-mail: lwan@tsinghua.edu.cn

Cite this article:

Jia-Qiang Huang(黄家强), Xue-Shu Yan(颜学术), Chen-Fei Wu(吴晨菲), Jian-Wei Zhang(张建伟), Li-Jun Wang(王力军) Intense source of cold cesium atoms based on a two-dimensional magneto-optical trap with independent axial cooling and pushing 2016 Chin. Phys. B 25 063701

[1]	Fixer J B, Foster G T, McGuirk J M and Kasevich M A 2007 Science 315 74
[2]	Muller H, Peters A and Chu S 2010 Nature 463 926
[3]	Xue H B, Feng Y Y, Chen S, Wang X J, Yan X S, Jiang Z K and Zhou Z Y 2015 J. Appl. Phys. 117 094901
[4]	Müler H, Chiow S W, Long Q, Herrmann S and Chu S 2008 Phys. Rev. Lett. 100 180405
[5]	Gibble K and Chu S 1993 Phys. Rev. Lett. 70 1771
[6]	Devenoges L, Stefanov A, Joyet A, Thomann P and Di Domenico G 2012 IEEE Trans. Ultrason. Ferroelectr. Freq. Control 59 211
[7]	Wang H and Iyanu G Proceedings of the IEEE International Frequency Control Symposium, June 2-4, 2010, California, USA, p. 454
[8]	Vanier J 2005 Appl. Phys. B 81 421
[9]	Wanier J, Bagnato V S, Zilio S and Julienne P S 1999 Rev. Mod. Phys. 7 1
[10]	Zhao B S, Schewe H C, Meijer G and Schöllkopf W 2010 Phys. Rev. Lett. 105 133203
[11]	Adams C, Sigel M and Mlynek J 1994 Phys. Rep. 240 143
[12]	Donley E, Heavner T and Jefferts S 2005 IEEE Trans. Instrum. Meas. 54 1905
[13]	Lison F, Schuh P, Haubrich D and Meschede D 1999 Phys. Rev. A 61 2483
[14]	Ketterle W, Martin A, Joffe M A and Pritchard D E 1992 Phys. Rev. Lett. 69 2483
[15]	Ovchinnikov Y B 2005 Opt. Commun. 249 473
[16]	Lu Z T, Corwin K L, Renn M J, Anderson M H, Cornell E A and Wieman C E 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]	Wang X J, Feng Y Y, Xue H B, Zhou Z Y and Zhang W D 2011 Chin. Phys. B 20 126701
[19]	Berthoud P, Fretel E and Thomann P 1999 Phys. Rev. A 60 R4241
[20]	Schoser J, Batär A, Löw R, Schweikhard V, Grabowski A, Ovchinnekov Y B and Pfau T 2002 Phys. Rev. A 66 023410
[21]	Dieckmann K, Spreeuw R J C, Weidemülle and Walraven J T M 1998 Phys. Rev. A 58 3891
[22]	Wang H and Buell W F 2003 J. Opt. Soc. Am. B 20 2025
[23]	Chaudhuri S, Roy S and Unnikrishnan C S 2006 Phys. Rev. A 74 023406
[24]	Fang J C, Lu Q, Zhang Y C, Wang T Y, Li H R, Hu Z H and Quan W 2015 J. Opt. Soc. Am. B 32 B61
[25]	Pruvost L, Marescaux D, Houde O and Duong H T 1999 Opt. Commun. 166 199
[26]	Carrat V, Cabrera-Gutierrez C, Jacquey M, Tabosa J W, de Lesegno B V and Pruvost L 2014 Opt. Lett. 39 719
[27]	Wohlleben W, Chevy F, Madison and Dalibard J 2001 Eur. Phys. J. D 15 237
[28]	Cacciapuoti L, Castrillo A, de Angelis M and Tino G M 2001 Eur. Phys. J. D 15 245
[29]	Catani J, Maioli L, de Sarlo L, Minardi F and Inguscio M 2006 Phys. Rev. A 73 033415
[30]	Castagna N, Guna J, Plimmer M D and Thomann P 2006 Eur. Phys. J.: Appl. Phys. 34 21
[31]	Wang J M, Wang J, Yan S B, Geng T and Zhang T C 2008 Rev. Sci. Instrum. 79 123116
[32]	Park S J, Noh J and Mun J 2012 Opt. Commun. 285 3950
[33]	Dimova E, Morizot O, Stern G, Alzar Garrido C L, Fioretti A, Lorent V, Comparat D, Perrin H and Pillet P 2007 Eur. Phys. J. D 42 299
[34]	Li K, Wang X R, He L X, Zhan M S and Lu B L 2007 Chin. Phys. Lett. 24 2562
[35]	Monroe C, Swann W, Robinson H and Wieman C 1990 Phys. Rev. Lett. 65 1571
[36]	Anwar M, Faisal M and Ahmed M 2013 Eur. Phys. J. D 67 270
[37]	Gallagher A and Pritchard D E 1989 Phys. Rev. Lett. 63 957
[38]	Affolderbach C, Andreeva C, Cartaleva S, Karaulanov T, Mileti G and Slavov D 2005 Appl. Phys. B 80 841
[39]	Kwee P, Willker B and Danzmann K 2011 Appl. Phys. B 102 515

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Intense source of cold cesium atoms based on a two-dimensional magneto-optical trap with independent axial cooling and pushing

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