Study on Spectra of Eu 4f76p3/2ns Autoionizing States

WANG Jing; SHEN Li; YANG Yu-na; DAI Chang-jian

doi:10.3788/fgxb20173812.1611

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Study on Spectra of Eu 4f⁷6p_3/2ns Autoionizing States

更新时间：2020-08-12

- Study on Spectra of Eu 4f⁷6p_3/2ns Autoionizing States
- Chinese Journal of Luminescence Vol. 38, Issue 12, Pages: 1611-1616(2017)
- 作者机构：
  
  1. 天津理工大学理学院天津,300384
  2. 天津理工大学显示技术与光电器件教育部重点实验室天津,300384
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China (1174218)
- DOI：10.3788/fgxb20173812.1611
  CLC： O433.5+9;O562.3+1
- Received：02 May 2017，
  
  Revised：03 September 2017，
  
  Published：05 December 2017
- 稿件说明：
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王靖, 沈礼, 杨玉娜等. Eu原子4f76p3/2ns自电离态的光谱的研究[J]. 发光学报, 2017,38(12): 1611-1616

WANG Jing, SHEN Li, YANG Yu-na etc. Study on Spectra of Eu 4f76p3/2ns Autoionizing States[J]. Chinese Journal of Luminescence, 2017,38(12): 1611-1616
王靖, 沈礼, 杨玉娜等. Eu原子4f76p3/2ns自电离态的光谱的研究[J]. 发光学报, 2017,38(12): 1611-1616 DOI： 10.3788/fgxb20173812.1611.

WANG Jing, SHEN Li, YANG Yu-na etc. Study on Spectra of Eu 4f76p3/2ns Autoionizing States[J]. Chinese Journal of Luminescence, 2017,38(12): 1611-1616 DOI： 10.3788/fgxb20173812.1611.

摘要

采用孤立实激发技术，对铕原子4f

3/2

s（

=7，8）自电离态的光谱进行了系统的研究，同时是首次在不同激光偏振组合下进行的研究。首先，用前两束激光分步将铕原子从基态4f

经中间4f

6s6p态激发至4f

s里德堡态，然后再用第三束激光通过离子实4f

3/2

的跃迁将其进一步激发至4f

3/2

7s自电离态或4f

3/2

8s自电离态。对铕原子4f

3/2

s（

=7，8）自电离态复杂的光谱分别给出了详细的解释，从中我们可以获得一些重要的光谱信息，比如自电峰的能级位置和线宽等，同时还可以观察到收敛于不同离子限的自电离系列之间的组态相互作用。最后，通过比较不同激光偏振组合下的自电离光谱，确定了一些自电离态的总角动量的值。

Abstract

To study the spectra of Eu 4f

3/2

s (

8) autoionizing states

the isolated-core excitation (ICE) technique was utilized

while the impact of laser polarization on the spectra was studied for the first time. The atom was excited from the ground state 4f

via

the first excited 4f

6s6p states to the 4f

s Rydberg states by the first two lasers

which were further excited to the 4f

3/2

7s or 4f

3/2

8s autoionizing states with the 4f

3/2

resonance transition by the third laser. The detailed interpretation to the complex spectra of the 4f

3/2

s (

8) autoionizing states was given

from which the spectroscopic information

such as the level energy and line width of the autoionization peak

can be obtained. Furthermore

the configuration interaction among different autoionization series converging to different ionization limits was also observed. Finally

the values of the total angular momentum

of some autoionizing states were identified with different laser polarization combinations.

关键词

Keywords

references

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Related Institution

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