Dependence of loading time on control parameters in a standard vapour–loaded magneto–optical trap

doi:10.1088/1674-1056/20/12/123701

Abstract Loading time is one of the most important dynamic characteristics of a magneto-optical trap. In this paper, we primarily report on a detailed experimental study of the effects of some magneto-optical trap control parameters on loading time, including the background vacuum pressure, the magnetic field gradient, and the intensities of trapping and repumping lasers. We compare the results with previous theoretical and experimental results, and give qualitative analysis. These experimental investigations offer some useful guidelines to control the loading time of magneto-optical traps. The controllable loading time achieved is helpful to enhance the signal-to-noise ratio of photoassociation spectroscopy, which is remarkably improved from 7 to 28.6.

Keywords: cold atoms loading time magneto-optical trap

Received: 28 May 2011
Revised: 20 June 2011
Accepted manuscript online:

PACS:	37.10.De	(Atom cooling methods)
	34.35.+a	(Interactions of atoms and molecules with surfaces)
	34.10.+x	(General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))

Fund: Project supported by the National High Technology Research and Development Program of China (Grant No. 2009AA01Z319), the National Basic Research Program of China (Grant No. 2006CB921603), the National Natural Science Foundation of China (Grant Nos. 61008012, 11074154, 10934004, 60978018, 60978001, and 60808009), the Natural Science Foundation of Shanxi Province of China (Grant No. 2009011059-2), the National Natural Science Foundation for Excellent Research Team (Grant No. 60821004), the New Teacher Foundation of the Ministry of Education of China (Grant No. 20101401120004), and the Natural Science Foundation of Shanxi Province of China (Grant No. 2009011059-2).

Cite this article:

Zhang Yi-Chi(张一驰), Wu Ji-Zhou(武寄洲), Li Yu-Qing(李玉清), Ma Jie(马杰),Wang Li-Rong(汪丽蓉), Zhao Yan-Ting(赵延霆), Xiao Lian-Tuan(肖连团), and Jia Suo-Tang(贾锁堂) Dependence of loading time on control parameters in a standard vapour–loaded magneto–optical trap 2011 Chin. Phys. B 20 123701

[1]	Drag C, Tolra B L, T'Jampens B, Comparat D, Allegrini M, Crubellier A and Pillet P 2000 Phys. Rev. Lett. 85 1408
[2]	Vala J, Dulieu O, Masnou-Seeuws F, Pillet P and Kosloff R 2000 Phys. Rev. A 63 013412
[3]	Anderson B P and Kasevich M A 2001 Phys. Rev. A 63 023404
[4]	Davis K B, Mewes M O, Andrews M R, van Druten N J, Durfee D S, Kurn D M and Ketterle W 1995 Phys. Rev. Lett. 75 3969
[5]	Fioretti A, Comparat D, Crubellier A, Dulieu O, Masnou-Seeuws F and Pillet P 1998 Phys. Rev. Lett. 80 4402
[6]	Gibble K E, Kasapi S and Chu S 1992 Opt. Lett. 17 526
[7]	Prodan I D, Pichler M, Junker M, Hulet R G and Bohn J L 2003 Phys. Rev. Lett. 91 080402
[8]	Wang L R, Ma J, Li C Y, Zhao J M, Xiao L T and Jia S T 2007 Appl. Phys. B 89 53
[9]	Zhao J M, Zhang L J, Feng Z G, Li C Y and Jia S T 2010 Chin. Phys. B 19 043202
[10]	Monroe C, Swann W, Robinson H and Wieman C 1990 Phys. Rev. Lett. 65 1571
[11]	Prentiss M, Cable A, Bjorkholm J, Chu S, Raab E and Pritchard D 1988 Opt. Lett. 13 452
[12]	Cheng H D, Wang X C, Xiao L, Zhang W Z, Liu L and Wang Y Z 2011 Chin. Phys. B 20 023701
[13]	Zhang P F, Li G, Zhang Y C, Yang R C, Guo Y Q, Wang J M and Zhang T C 2010 Acta Phys. Sin. bf59 6423 (in Chinese)
[14]	Stephens M and Wieman C 1994 Phys. Rev. Lett. 72 3787
[15]	Gallagher A and Pritchard D E 1989 Phys. Rev. Lett. 63 957
[16]	Feng P, Hoffmann D and Walke T 1993 Phys. Rev. A 47 R3495

[1]	Integrated, reliable laser system for an ⁸⁷Rb cold atom fountain clock Zhen Zhang(张镇), Jing-Feng Xiang(项静峰), Bin Xu(徐斌), Pan Feng(冯盼), Guang-Wei Sun(孙广伟),Yi-Ming Meng(孟一鸣), Si-Min-Da Deng(邓思敏达), Wei Ren(任伟),Jin-Yin Wan(万金银), and De-Sheng Lü(吕德胜). Chin. Phys. B, 2023, 32(1): 013202.
[2]	Enhanced cold mercury atom production with two-dimensional magneto-optical trap Ye Zhang(张晔), Qi-Xin Liu(刘琪鑫), Jian-Fang Sun(孙剑芳), Zhen Xu(徐震), and Yu-Zhu Wang(王育竹). Chin. Phys. B, 2022, 31(7): 073701.
[3]	High-performance coherent population trapping clock based on laser-cooled atoms Xiaochi Liu(刘小赤), Ning Ru(茹宁), Junyi Duan(段俊毅), Peter Yun(云恩学), Minghao Yao(姚明昊), and Jifeng Qu(屈继峰). Chin. Phys. B, 2022, 31(4): 043201.
[4]	Improve the performance of interferometer with ultra-cold atoms Xiangyu Dong(董翔宇), Shengjie Jin(金圣杰), Hongmian Shui(税鸿冕), Peng Peng(彭鹏), and Xiaoji Zhou(周小计). Chin. Phys. B, 2021, 30(1): 014210.
[5]	Simulation of anyons by cold atoms with induced electric dipole moment Jian Jing(荆坚), Yao-Yao Ma(马瑶瑶), Qiu-Yue Zhang(张秋月), Qing Wang(王青), Shi-Hai Dong(董世海). Chin. Phys. B, 2020, 29(8): 080303.
[6]	Enhancement of the photoassociation of ultracold atoms via a non-resonant magnetic field Ji-Zhou Wu(武寄洲), Yu-Qing Li(李玉清), Wen-Liang Liu(刘文良), Peng Li(李鹏), Xiao-Feng Wang(王晓锋), Peng Chen(陈鹏), Jie Ma(马杰), Lian-Tuan Xiao(肖连团), Suo-Tang Jia(贾锁堂). Chin. Phys. B, 2020, 29(8): 083303.
[7]	Generating two-dimensional quantum gases with high stability Bo Xiao(肖波), Xuan-Kai Wang(王宣恺), Yong-Guang Zheng(郑永光), Yu-Meng Yang(杨雨萌), Wei-Yong Zhang(章维勇), Guo-Xian Su(苏国贤), Meng-Da Li(李梦达), Xiao Jiang(江晓), Zhen-Sheng Yuan(苑震生). Chin. Phys. B, 2020, 29(7): 076701.
[8]	Enhanced optical molasses cooling for Cs atoms with largely detuned cooling lasers Di Zhang(张迪), Yu-Qing Li(李玉清), Yun-Fei Wang(王云飞), Yong-Ming Fu(付永明), Peng Li(李鹏), Wen-Liang Liu(刘文良), Ji-Zhou Wu(武寄洲), Jie Ma(马杰), Lian-Tuan Xiao(肖连团), Suo-Tang Jia(贾锁堂). Chin. Phys. B, 2020, 29(2): 023203.
[9]	BaF radical: A promising candidate for laser cooling and magneto-optical trapping Liang Xu(许亮), Bin Wei(魏斌), Yong Xia(夏勇), Lian-Zhong Deng(邓联忠), Jian-Ping Yin(印建平). Chin. Phys. B, 2017, 26(3): 033702.
[10]	Demonstration of a cold atom beam splitter on atom chip Xiaojun Jiang(蒋小军), Xiaolin Li(李晓林), Haichao Zhang(张海潮), Yuzhu Wang(王育竹). Chin. Phys. B, 2016, 25(8): 080311.
[11]	Intense source of cold cesium atoms based on a two-dimensional magneto-optical trap with independent axial cooling and pushing 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). Chin. Phys. B, 2016, 25(6): 063701.
[12]	Microwave-mediated magneto-optical trap for polar molecules Dizhou Xie(谢笛舟), Wenhao Bu(卜文浩), Bo Yan(颜波). Chin. Phys. B, 2016, 25(5): 053701.
[13]	Electromagnetically induced transparency in a Zeeman-sublevels Λ-system of cold ⁸⁷Rb atoms in free space Xiaojun Jiang(蒋小军), Haichao Zhang(张海潮), Yuzhu Wang(王育竹). Chin. Phys. B, 2016, 25(3): 034204.
[14]	Fast thermometry for trapped atoms using recoil-induced resonance Zhao Yan-Ting (赵延霆), Su Dian-Qiang (苏殿强), Ji Zhong-Hua (姬中华), Zhang Hong-Shan (张洪山), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂). Chin. Phys. B, 2015, 24(9): 093701.
[15]	Oscillation of the spin-currents of cold atoms on a ring due to light-induced spin-orbit coupling Xie Wen-Fang (解文方), He Yan-Zhang (贺彦章), Bao Cheng-Guang (鲍诚光). Chin. Phys. B, 2015, 24(6): 060305.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Dependence of loading time on control parameters in a standard vapour–loaded magneto–optical trap

Cite this article:

Online attention