Recombination during expansion of ultracold plasma

doi:10.1088/1674-1056/19/4/043202

中国物理B ›› 2010, Vol. 19 ›› Issue (4): 43202-043202.doi: 10.1088/1674-1056/19/4/043202

Recombination during expansion of ultracold plasma

赵建明, 张临杰, 冯志刚, 李昌勇, 贾锁堂

State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China

收稿日期:2009-06-24 修回日期:2009-08-28 出版日期:2010-04-15 发布日期:2010-04-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No.~2006CB921603), the National Natural Science Foundation of China (Grant Nos.~60978018, 60978001, 10934004 and 60778008), and the Foundation of the Ministry of Education of China a

Recombination during expansion of ultracold plasma

Zhao Jian-Ming(赵建明)^†, Zhang Lin-Jie(张临杰), Feng Zhi-Gang(冯志刚), Li Chang-Yong(李昌勇), and Jia Suo-Tang(贾锁堂)

State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China

Received:2009-06-24 Revised:2009-08-28 Online:2010-04-15 Published:2010-04-15
Supported by:
Project supported by the National Basic Research Program of China (Grant No.~2006CB921603), the National Natural Science Foundation of China (Grant Nos.~60978018, 60978001, 10934004 and 60778008), and the Foundation of the Ministry of Education of China a

摘要/Abstract

摘要： Signals of ultracold plasma are observed by two-photon ionization of laser-cooled caesium atoms in a magneto-optical trap. Recombination of ions and electrons into Rydberg atoms during the expansion of ultracold plasma is investigated by using state-selective field ionization spectroscopy. The dependences of recombination on initial electron temperature (1--70 K) and initial ion density ($ \sim $10$^{10}$ cm$^{ - 3})$ are investigated. The measured dependence on initial ion density is $N^{1.547\pm 0.004}$ at a delay time of 5 $\mu $s. The recombination rate rapidly declines as initial electron temperature increases when delay time is increased. The distributions of Rydberg atoms on different values of principal quantum number $n$, i.e. $n=30$--60, at an initial electron temperature of 3.3 K are also investigated. The main experimental results are approximately explained by the three-body recombination theory.

Abstract: Signals of ultracold plasma are observed by two-photon ionization of laser-cooled caesium atoms in a magneto-optical trap. Recombination of ions and electrons into Rydberg atoms during the expansion of ultracold plasma is investigated by using state-selective field ionization spectroscopy. The dependences of recombination on initial electron temperature (1--70 K) and initial ion density ($ \sim $10$^{10}$ cm$^{ - 3})$ are investigated. The measured dependence on initial ion density is $N^{1.547\pm 0.004}$ at a delay time of 5 $\mu $s. The recombination rate rapidly declines as initial electron temperature increases when delay time is increased. The distributions of Rydberg atoms on different values of principal quantum number $n$, i.e. $n=30$--60, at an initial electron temperature of 3.3 K are also investigated. The main experimental results are approximately explained by the three-body recombination theory.

Key words: recombination, ultracold plasma, Rydberg atoms

中图分类号: (Atom cooling methods)

37.10.De

32.80.Fb (Photoionization of atoms and ions)

赵建明, 张临杰, 冯志刚, 李昌勇, 贾锁堂. Recombination during expansion of ultracold plasma[J]. 中国物理B, 2010, 19(4): 43202-043202.

Zhao Jian-Ming(赵建明), Zhang Lin-Jie(张临杰), Feng Zhi-Gang(冯志刚), Li Chang-Yong(李昌勇), and Jia Suo-Tang(贾锁堂). Recombination during expansion of ultracold plasma[J]. Chin. Phys. B, 2010, 19(4): 43202-043202.

参考文献 19

[1]	Killian T C, Kulin S, Bergeson S D, Orozco L A, Orzel C and Rolston S L 1999 Phys. Rev. Lett. 83 4776
[2]	Robinson M P, Tolra B L, Noel M W, Gallagher T F and Pillet P 2000 Phys. Rev. Lett. 85 4466
[3]	Kulin S, Killian T C, Bergeson S D and Rolston S L 2000 Phys. Rev. Lett. 86 318
[4]	Simien C E, Chen Y C, Gupta P, Laha S, Martinez Y N, Mickelson P G, Nagel S B and Killian K C 2004 Phys. Rev. Lett. 92 143001
[5]	Robicheaux F and Hanson J D 2002 Phys. Rev. Lett. 88 055002
[6]	Killian T C, Lim M J, Kulin S, Dumke R, Bergeson S D and Rolston S L 2001 Phys. Rev. Lett. 86 3759
	[Fletcher R S, Zhang X L and Rolston S L 2007 Phys. Rev. Lett. 99 145001
[7]	Kuzmin S G and O'Neil T M 2002 Phys. Rev. Lett. 88 065003
[7a]	Kuzmin S G and O'Neil T M 2002 Phys. Plasmas 9 3743
[8]	Mazevet S, Collins L A and Kress J D 2002 Phys. Rev. Lett. 88 } 055001
[9]	Robicheaux F and Hanson J D 2003 Phys. Plasmas 10 2217
[10]	Pohl T, Pattard T and Rost J M 2004 Phys. Rev. A 70 033416
	[Pohl T, Vrinceanu D and Sadeghpour H R 2008 Phys. Rev. Lett. 100 223201
[11]	Cummings E A, Daily J E, Durfee D S and Bergeson S D 2005 Phys. Rev. Lett. 95 235001
	[Cummings E A, Daily J E, Durfee D S and Bergeson S D 2005 Phys. Plasmas 12 123501
[12]	Chen Y C, Simien C E, Laha S, Gupta P, Martinez Y N, Mickelson P G, Nagel S B and Killian T C 2004 Phys. Rev. Lett. 93 265003
[13]	Zhang X L, Fletcher R S and Rolston S L 2008 Phys. Rev. Lett. 100 235002
[14]	Mansbach P and Keck J 1969 Phys. Rev. 181 275
[15]	Hahn Y 1997 Phys. Lett. A 231 82
	[ Hahn Y 2000 Phys. Lett. A 264 465
[16]	Amoretti M, Amsler C, Bonomi G, Bouchta A, Bowe P, Carraro C, Cesar C L, Charlton M, Collier M J T, Doser M, Filippini V, Fine K S, Fontana A, Fujiwara M C, Funakoshi R, Genova P, Hangst J S, Hayano R S, Holzscheiter M H, Jrgensen L V, Lagomarsino V, Landua R, Lindelof D, Lodi Rizzini E, Macri M, Madsen N, Manuzio G, Marchesotti M, Montagna P, Pruys H, Regenfus C, Riedler P, Rochet J, Rotondi A, Rouleau G, Testera G, Variola A, Watson T L and Van der Werf D P 2002 Nature 419 456
[17]	Jing Q, Feng Z G, Zhang L J, Li C Y, Zhao J M and Jia S T 2008 Chin. Phys. Lett. 25 4248
[17a]	Zhang L J, Feng Z G, Li A L, Zhao J M, Li C Y and Jia S T 2009 Chin. Phys. B18 1838
[18]	Feng Z G, Zhang L J, Zhao J M, Li C Y, Li A L and Jia S T 2008 Chin. Phys. Lett. 25 2661
[19]	Gallagher T 1994 Rydberg Atoms} (Cambridge: Cambridge University Press)

Recombination during expansion of ultracold plasma

Recombination during expansion of ultracold plasma

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 19

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Ziliang Li(李子亮), Zhengyu Gu(顾正宇), Zhenlian Shi(师振莲), Pengjun Wang(王鹏军), and Jing Zhang(张靖). Quantum degenerate Bose-Fermi atomic gas mixture of ²³Na and ⁴⁰K[J]. 中国物理B, 2023, 32(2): 23701-023701.
[2]	Yi Qin(秦毅), Xiao-Yang Shen(沈晓阳), Wei-Xuan Chang(常炜玄), and Lin Xia(夏林). Space continuous atom laser in one dimension[J]. 中国物理B, 2023, 32(1): 13701-013701.
[3]	Jin-Qi Wang(王进起), Ang Zhang(张昂), Cong-Cong Tian(田聪聪), Ni Yin(殷妮), Qiang Zhu(朱强), Bing Wang(王兵), Zhuan-Xian Xiong(熊转贤), Ling-Xiang He(贺凌翔), and Bao-Long Lv(吕宝龙). Effective sideband cooling in an ytterbium optical lattice clock[J]. 中国物理B, 2022, 31(9): 90601-090601.
[4]	Jie Miao(苗杰), Guoqi Bian(边国旗), Biao Shan(单标), Liangchao Chen(陈良超), Zengming Meng(孟增明), Pengjun Wang(王鹏军), Lianghui Huang(黄良辉), and Jing Zhang(张靖). Achieving ultracold Bose-Fermi mixture of ⁸⁷Rb and ⁴⁰K with dual dark magnetic-optical-trap[J]. 中国物理B, 2022, 31(8): 80306-080306.
[5]	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). Enhanced cold mercury atom production with two-dimensional magneto-optical trap[J]. 中国物理B, 2022, 31(7): 73701-073701.
[6]	Wenliang Liu(刘文良), Ningxuan Zheng(郑宁宣), Jun Jian(蹇君), Li Tian(田丽), Jizhou Wu(武寄洲), Yuqing Li(李玉清), Yongming Fu(付永明), Peng Li(李鹏), Vladimir Sovkov, Jie Ma(马杰), Liantuan Xiao(肖连团), and Suotang Jia(贾锁堂). Superfluid to Mott-insulator transition in a one-dimensional optical lattice[J]. 中国物理B, 2022, 31(7): 73702-073702.
[7]	Cheng-Dong Mi(米成栋), Khan Sadiq Nawaz, Peng-Jun Wang(王鹏军), Liang-Chao Chen(陈良超), Zeng-Ming Meng(孟增明), Lianghui Huang(黄良辉), and Jing Zhang(张靖). Production of dual species Bose-Einstein condensates of ³⁹K and ⁸⁷Rb[J]. 中国物理B, 2021, 30(6): 63401-063401.
[8]	. [J]. 中国物理B, 2021, 30(3): 33701-.
[9]	张迪, 李玉清, 王云飞, 付永明, 李鹏, 刘文良, 武寄洲, 马杰, 肖连团, 贾锁堂. Enhanced optical molasses cooling for Cs atoms with largely detuned cooling lasers[J]. 中国物理B, 2020, 29(2): 23203-023203.
[10]	李睿宗, 高天佑, 张东方, 彭世国, 孔令冉, 沈星, 江开军. Expansion dynamics of a spherical Bose-Einstein condensate[J]. 中国物理B, 2019, 28(10): 106701-106701.
[11]	王晓青, 李玉清, 冯国胜, 武寄洲, 马杰, 肖连团, 贾锁堂. Excessive levitation for the efficient loading of large-volume optical dipole traps[J]. 中国物理B, 2018, 27(1): 18702-018702.
[12]	陈姝, 李营营, 颜学术, 薛洪波, 冯焱颖. Tuning the velocity and flux of a low-velocity intense source of cold atomic beam[J]. 中国物理B, 2017, 26(11): 113703-113703.
[13]	魏春华, 颜树华. Raman sideband cooling of rubidium atoms in optical lattice[J]. 中国物理B, 2017, 26(8): 80701-080701.
[14]	张晓航, 徐信业. Development of adjustable permanent magnet Zeeman slowers for optical lattice clocks[J]. 中国物理B, 2017, 26(5): 53701-053701.
[15]	黄家强, 颜学术, 吴晨菲, 张建伟, 王力军. Intense source of cold cesium atoms based on a two-dimensional magneto-optical trap with independent axial cooling and pushing[J]. 中国物理B, 2016, 25(6): 63701-063701.