LASER SELECTIVE EXCITATION IN CaS:Pr, Na

Huang Shihua; Li Wenlian

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LASER SELECTIVE EXCITATION IN CaS:Pr, Na

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- LASER SELECTIVE EXCITATION IN CaS:Pr, Na
- Chinese Journal of Luminescence Vol. 18, Issue 1, Pages: 1-8(1997)
- 作者机构：
  
  1. 中国科学院长春物理研究所, 长春 130021
  2. 中国科学院激发态物理开放研究实验室, 长春 130021
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：21 March 1996，
  
  Published：28 February 1997
- 稿件说明：
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黄世华, 李文连. CaS:Pr,Na的激光选择激发[J]. 发光学报, 1997,18(1): 1-8

Huang Shihua, Li Wenlian. LASER SELECTIVE EXCITATION IN CaS:Pr, Na[J]. Chinese Journal of Luminescence, 1997,18(1): 1-8
黄世华, 李文连. CaS:Pr,Na的激光选择激发[J]. 发光学报, 1997,18(1): 1-8 DOI：

Huang Shihua, Li Wenlian. LASER SELECTIVE EXCITATION IN CaS:Pr, Na[J]. Chinese Journal of Luminescence, 1997,18(1): 1-8 DOI：

摘要

本文用激光选择激发研究了CaS:Pr

Na中Pr

的

→

发光

分辨出5种不同的Pr中心。用三个参数描述立方晶场中受电荷补偿结构影响的稀土离子的能级劈裂

其中两个参数是立方晶场参数

和

另一个反映引入电荷补偿结构后立方晶场的畸变。对

能级劈裂的拟合结果表明

发光来自受不同距离上电荷补偿结构影响的Pr中心.

Abstract

fluorescence of Pr

in CaS:Pr

Na is studied by means of laser selective excitation. Five Pr centers are revealed. A three-parameter model is used to describe the Hamiltonian of rare earth ions in a cubic lattice with charge compensators. Two of the parameters are B 4 and B 6 of the original cubic crystal

the third is related to the distortion due to introducing the compensator. Fitting the splittings of

with such a model has shown that the observed centers are Pr

with charge compensator situated at different distances.

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