铕原子Rydberg态的场电离研究

张婧; 沈礼; 戴长建

doi:10.3788/fgxb20153607.0757

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铕原子Rydberg态的场电离研究

材料合成及性能 | 更新时间：2020-08-12

- 铕原子Rydberg态的场电离研究
- Field Ionization of Eu Rydberg States
- 发光学报 2015年36卷第7期页码：757-762
- 作者机构：
  
  1. 天津理工大学理学院天津,300384
  2. 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：
  
  国家自然科学基金(11174218,11004151)资助项目()
- DOI：10.3788/fgxb20153607.0757
  中图分类号： O433
- 纸质出版日期：2015-7-3，
  
  收稿日期：2015-4-3，
  
  修回日期：2015-5-7，
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张婧, 沈礼, 戴长建. 铕原子Rydberg态的场电离研究[J]. 发光学报, 2015,36(7): 757-762

ZHANG Jing, SHEN Li, DAI Chang-jian. Field Ionization of Eu Rydberg States[J]. Chinese Journal of Luminescence, 2015,36(7): 757-762
张婧, 沈礼, 戴长建. 铕原子Rydberg态的场电离研究[J]. 发光学报, 2015,36(7): 757-762 DOI： 10.3788/fgxb20153607.0757.

ZHANG Jing, SHEN Li, DAI Chang-jian. Field Ionization of Eu Rydberg States[J]. Chinese Journal of Luminescence, 2015,36(7): 757-762 DOI： 10.3788/fgxb20153607.0757.

摘要

利用三步激光共振激发结合场电离探测技术

系统地研究了铕原子归属于第一电离限4f

的4f

p Rydberg态的场电离过程

得到了铕原子 4f

p Rydberg 态的场电离光谱图。在光激发之后施加脉宽为0.2 s的脉冲电场

连续扫描电压得到场电离过程图。从4f

p Rydberg态的场电离过程图谱中

可以精确地获得态的场电离阈

观察电场逐步从0到3 kV变化时原子的演化过程。特别是

受黑体辐射的影响

一些结构出现在了场电离光谱图上。

Abstract

The field ionization process of Eu 4f

p Rydberg states converging to the first ionization limit 4f

was systematically investigated. Firstly

the spectra of Rydberg states 4f

p of Eu atom were measured using the three-step laser excitation and electric field ionization (EFI) method. Secondly

the EFI pulse(pulse width of 0.2 s)was applied after laser excitation. Then

we continuously scan field ionization voltage to observe the EFI process

and to realize the potential of field ionization we need to understand what happens to the atoms as the pulse field rises from 0 to 3 kV. The exact location of ionization threshold can be obtained when the peak of ionization field changes. Especially

above the threshold

some structures are found due to black body radiation (BBR).

关键词

铕原子Rydberg态场电离场电离阈

Keywords

Eu atomRydberg statefield ionizationionization threshold

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