Anomalous relaxation of populations in hyperfine Zeeman sublevels of Cs atoms induced by collisional modification of the Cs hyperfine interaction

	Anomalous relaxation of populations in hyperfine Zeeman sublevels of Cs atoms induced by collisional modification of the Cs hyperfine interaction
	Luo, J; Zhao, MX; Chen, AQ; Zeng, XZ; Wu, ZH
刊名	JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
	1996-08-14
卷号	29 期号:15 页码:3319-3339
ISSN号	0953-4075
文献子类	Article
英文摘要	Cs vapour in N-2, Ar, Kr, Ne, He and Xe buffer gases was optically pumped with a diode laser in a magnetic field of 1.516 T. The relaxation of the population imbalance in the hyperfine Zeeman sublevels of the ground state was detected with another diode laser. A phenomenological theory is presented which explains the optical transients and the time variation of the populations in the hyperfine Zeeman sublevels. Both experimental and theoretical results showed that there were relaxation transients of populations in some hyperfine Zeeman sublevels of optically pumped Cs with 'anomalous' shapes. The experimental results showed that the 'anomalous' relaxation depended strongly on the buffer-gas species and the buffer-gas pressure. Theoretically, it was found that the combined electron-spin-nuclear-spin transition, which is mainly induced by collisional modification delta alpha((I) over right arrow .(S) over right arrow), caused the 'anomalous' shapes of the transients. The collisional transfer cross section for the binary delta alpha((I) over right arrow .(S) over right arrow) collisional interactions was estimated to be sigma(delta alpha) = 2.8 x 10(-22) cm(2). 'Anomalous' relaxations of populations in the hyperfine Zeeman sublevels are discussed. The results of the calculation are in good agreement with the experimental results.
WOS关键词	OPTICALLY PUMPED CS ; MAGNETIC-FIELD
WOS研究方向	Optics ; Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:A1996VD86600008
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/12633]
专题	中国科学院武汉物理与数学研究所
通讯作者	Luo, J
推荐引用方式 GB/T 7714	Luo, J,Zhao, MX,Chen, AQ,et al. Anomalous relaxation of populations in hyperfine Zeeman sublevels of Cs atoms induced by collisional modification of the Cs hyperfine interaction[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,1996,29(15):3319-3339.
APA	Luo, J,Zhao, MX,Chen, AQ,Zeng, XZ,&Wu, ZH.(1996).Anomalous relaxation of populations in hyperfine Zeeman sublevels of Cs atoms induced by collisional modification of the Cs hyperfine interaction.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,29(15),3319-3339.
MLA	Luo, J,et al."Anomalous relaxation of populations in hyperfine Zeeman sublevels of Cs atoms induced by collisional modification of the Cs hyperfine interaction".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 29.15(1996):3319-3339.