Effect of Mass Difference between Host Ions on the Thermal Shift and Broadening of the Spectral Lines of the Active Ions in Crystals

LUO Zun-du; HUANG Yi-dong; CHEN Xue-yuan

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Effect of Mass Difference between Host Ions on the Thermal Shift and Broadening of the Spectral Lines of the Active Ions in Crystals

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- Effect of Mass Difference between Host Ions on the Thermal Shift and Broadening of the Spectral Lines of the Active Ions in Crystals
- Chinese Journal of Luminescence Vol. 23, Issue 4, Pages: 341-343(2002)
- 作者机构：
  
  中国科学院福建物质结构研究所,福建福州,350002
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.3
- Received：20 September 2001，
  
  Revised：18 March 2002，
  
  Published：20 July 2002
- 稿件说明：
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罗遵度, 黄艺东, 陈学元. 晶体中离子质量差异与激活离子光谱线热加宽和热位移[J]. 发光学报, 2002,23(4): 341-343

LUO Zun-du, HUANG Yi-dong, CHEN Xue-yuan. Effect of Mass Difference between Host Ions on the Thermal Shift and Broadening of the Spectral Lines of the Active Ions in Crystals[J]. Chinese Journal of Luminescence, 2002,23(4): 341-343
罗遵度, 黄艺东, 陈学元. 晶体中离子质量差异与激活离子光谱线热加宽和热位移[J]. 发光学报, 2002,23(4): 341-343 DOI：

LUO Zun-du, HUANG Yi-dong, CHEN Xue-yuan. Effect of Mass Difference between Host Ions on the Thermal Shift and Broadening of the Spectral Lines of the Active Ions in Crystals[J]. Chinese Journal of Luminescence, 2002,23(4): 341-343 DOI：

摘要

证明了基质晶体离子的质量差异对其中的激活离子光谱线的热加宽和热位移有贡献.对于单声子吸收或发射机制产生的热加宽和热位移而言

其贡献可以用一个乘积因子

表示

对于喇曼散射机制引起的热加宽

其贡献可以用乘积因子

表示.文中分别给出两种离子组成的晶体和三种离子组成的晶体的D的表示式.

Abstract

It is shown in this paper that the mass difiference between ions of the host crystal has an effect on the thermal broadening and shift of spectral lines of active ions in the crystals. The effect is expressed as a multiplied factor

for the thermal broadening and shift caused by one-phonon absorption and emission mechanism

and a multiplied factor

for the thermal broadening caused by Raman scattering process. The expressions of

-factor are given for crystals constituted of two and three kinds of ions

respectively. Obviously

the factor of

equals to 1 when all of the ions in a crystal have the same mass

and it increases with the mass difference between different kinds of ions in the crystal. Therefore

when the other conditions are invariable

the thermal broadening and shift of the lines increase with the mass difference between ions. The values of

are given for two examples.

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School of Physical Science and Technology， ShanghaiTech University

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