Level sequence and splitting identification of closely spaced energy levels by angle-resolved analysis of fluorescence light
Level sequence and splitting identification of closely spaced energy levels by angle-resolved analysis of fluorescence light
复制标题
通过荧光角度解析分析对紧密分布的能级进行能级序列和分裂识别
DOI：
10.1103/physreva.93.063413
复制
发表时间：
2016-06
影响因子：
2.9
通讯作者：
Fritzsche S.
中科院分区：
文献类型：
--
作者：
Wu Z. W.;Volotka A. V.;Surzhykov A.;Dong C. Z.;Fritzsche S.
The angular distribution and linear polarization of the fluorescence light following the resonant photoexcitation is investigated within the framework of the density matrix and second-order perturbation theory. Emphasis has been placed on "signatures" for determining the level sequence and splitting of intermediate (partially) overlapping resonances, if analyzed as a function of the photon energy of the incident light. Detailed computations within the multiconfiguration Dirac-Fock method have been performed especially for the $1s^{2}2s^{2}2p^{6}3s\;\, J_{i}=1/2 \,+\, \gamma_{1} \:\rightarrow\: (1s^{2}2s2p^{6}3s)_{1}3p_{3/2}\;\, J=1/2, \, 3/2
\:\rightarrow\: 1s^{2}2s^{2}2p^{6}3s\;\, J_{f}=1/2 \,+\, \gamma_{2}$ photoexcitation and subsequent fluorescence emission of atomic sodium. A remarkably strong dependence of the angular distribution and linear polarization of the $\gamma_{2}$ fluorescence emission is found upon the level sequence and splitting of the intermediate $(1s^{2}2s2p^{6}3s)_{1}3p_{3/2}\;\, J=1/2, \, 3/2$ overlapping resonances owing to their finite lifetime (linewidth). We therefore suggest that accurate measurements of the angular distribution and linear polarization might help identify the sequence and small splittings of closely-spaced energy levels, even if they can not be spectroscopically resolved.
DOI：
10.1007/978-1-4757-3228-3
发表时间：
2000
期刊：
--
影响因子：
--
作者：
V. V. Balashov-V.;A. Grum-Grzhimailo;N. M. Kabachnik
通讯作者：
V. V. Balashov-V.;A. Grum-Grzhimailo;N. M. Kabachnik
影响因子：
4.1
作者：
R. Stephenson
通讯作者：
R. Stephenson
DOI：
--
发表时间：
2010-11
期刊：
--
影响因子：
--
作者：
I. Grant
通讯作者：
I. Grant