Realization of population inversion between 7S(1/2) and 6P(3/2) levels   of cesium for four-level active optical clock

doi:10.1007/s11433-013-5068-7

CORC > 北京大学 > 信息科学技术学院

	Realization of population inversion between 7S(1/2) and 6P(3/2) levels of cesium for four-level active optical clock
	Wang YanFei ; Wang DongYing ; Zhang TongGang ; Hong YeLong ; Zhang ShengNan ; Tao ZhiMing ; Xie XiaoPeng ; Chen JingBiao
刊名	science china physics mechanics astronomy
	2013
关键词	active optical clock four-level system population inversion TRANSITION-PROBABILITIES LASER LINEWIDTH
DOI	10.1007/s11433-013-5068-7
英文摘要	We demonstrate experimentally the population inversion between 7S(1/2) and 6P(3/2) levels of cesium in thermal cesium cell with a 455.5 nm pumping laser. We calculate the relative population probabilities at each level theoretically with the density matrix method. In a steady state, 5.8% atoms are at 7S(1/2) level and 2.9% at 6P(3/2) level, which builds up the population inversion between the two levels. We obtain the fluorescence spectra produced in thermal cesium cell in our experiment. The measured relative intensity of each available fluorescence spectral line in the experiment agrees very well with the theoretical result. The demonstrated population inversion between 7S(1/2) and 6P(3/2) levels can be used to construct an active optical clock of four-level system with a wavelength of 1469.9 nm.; Physics, Multidisciplinary; SCI(E); EI; 8; ARTICLE; 6; 1107-1110; 56
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152302]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Wang YanFei,Wang DongYing,Zhang TongGang,et al. Realization of population inversion between 7S(1/2) and 6P(3/2) levels of cesium for four-level active optical clock[J]. science china physics mechanics astronomy,2013.
APA	Wang YanFei.,Wang DongYing.,Zhang TongGang.,Hong YeLong.,Zhang ShengNan.,...&Chen JingBiao.(2013).Realization of population inversion between 7S(1/2) and 6P(3/2) levels of cesium for four-level active optical clock.science china physics mechanics astronomy.
MLA	Wang YanFei,et al."Realization of population inversion between 7S(1/2) and 6P(3/2) levels of cesium for four-level active optical clock".science china physics mechanics astronomy (2013).