光学学报, 1984, 4 (4): 317, 网络出版: 2020-08-28  

利用激光感生荧光直接显示原子能级超精细结构的新方法

A new method for directly displaying h. f. s. of atoms by laser-induced fluorescence
作者单位
中国科学院上海光学精密机械研究所
摘要
本文详细讨论了一种在空间直接显示原子的超精细结构的方法,并观察到Na原子3~2P(1/2)态的两个超精细能级结构。发散的片状原子束和发散的片状激光束在空间相互作用,当多普勒频移等于原子跃迁频率和激光器频率之差时,原子被激发并在空间发光。计算和实验都已证实发光轨迹是一圆弧。荧光带的数目表明起精细能级的数目,根据空间位置可定出能级间隔,荧光带的宽度反映原子束的速度分布,实验研究了钠原子的3~2S(1/2)—3~2P(1/2)的荧光轨迹,照片显示了两个清楚分开的荧光带,带的间距和计算结果相符。
Abstract
In this paper, a detail description of a new method which could directly display the atomic hyperfine structures (hfs) in space is given and the observation of the two hfs of the 32P1/2 state of Na is reported. When a chipped divergent atomic beam interacts with a chipped divergent laser beam in space, atoms will be excited to upper state and then emit fluorescence, if Doppler frequency shift equals the difference between the atomic transition frequency and the laser frequency. Both calculated and experimental results show that the fluorescence loci is an arc. The number of filuorescenoe bands indicated the number of tlie hfs, while the positions and the widths of fluorescence bands represent the splittings of the hfs and the velocity distribution of atoms in the atomic beam respectively. The fluorescence loot corresponding to the transitions from the 32s(1/2) state to tho 32p(1/2) state of Na have been studied. The photographs show two distinctly separated fluoresoenoa bands, and the interval between these two bands is in good agreement with the calculation.

周汝枋, 周志尧, 倪国权, 王育竹. 利用激光感生荧光直接显示原子能级超精细结构的新方法[J]. 光学学报, 1984, 4(4): 317. Zhou Rufang, Zhou Zhiyao, Ni Guoquan, Cai Weiquan and Wang Yuzhu. A new method for directly displaying h. f. s. of atoms by laser-induced fluorescence[J]. Acta Optica Sinica, 1984, 4(4): 317.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!