Failure of Raman Scattering Selection Rule and State Density in PbF2+WO3+GeO2 Glass Ceramics

Kong Xiang-gui; CHEN Bao-jiu; Xu Wu; Huang Shi-hua; FAN X W; CHAO Wang-he

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Failure of Raman Scattering Selection Rule and State Density in PbF₂+WO₃+GeO₂ Glass Ceramics

更新时间：2020-08-11

- Failure of Raman Scattering Selection Rule and State Density in PbF₂+WO₃+GeO₂ Glass Ceramics
- Chinese Journal of Luminescence Vol. 21, Issue 4, Pages: 373-375(2000)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 吉林长春130021
  2. 中国科学院激发态物理开放研究实验室,吉林长春,130021
- 作者简介：
- 基金信息：
- DOI：
  CLC： O472.3
- Received：04 August 1999，
  
  Revised：2000-1-30，
  
  Published：30 November 2000
- 稿件说明：
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孔祥贵, 陈宝玖, 许武, 黄世华, 范希武, 曹望和. PWG玻璃陶瓷中的喇曼选择定则的失效及其态密度[J]. 发光学报, 2000,21(4): 373-375

KONG Xiang-gui, CHEN Bao-jiu, XU Wu, HUANG Shi-hua, FAN X W, CHAO Wang-he. Failure of Raman Scattering Selection Rule and State Density in PbF2+WO3+GeO2 Glass Ceramics[J]. Chinese Journal of Luminescence, 2000,21(4): 373-375
孔祥贵, 陈宝玖, 许武, 黄世华, 范希武, 曹望和. PWG玻璃陶瓷中的喇曼选择定则的失效及其态密度[J]. 发光学报, 2000,21(4): 373-375 DOI：

KONG Xiang-gui, CHEN Bao-jiu, XU Wu, HUANG Shi-hua, FAN X W, CHAO Wang-he. Failure of Raman Scattering Selection Rule and State Density in PbF2+WO3+GeO2 Glass Ceramics[J]. Chinese Journal of Luminescence, 2000,21(4): 373-375 DOI：

摘要

提出了关于PbF

+WO

+GeO

(PWG)玻璃陶瓷中介电相关函数的计算。这个计算表明:在这类无序材料中

正则振动模的短相干长度使喇曼选择定则失效

并且在态密度函数以及随频率而变的正则振动模振幅基础之上分析推导得出一级喇曼散射强度的表达式。

Abstract

The calculation of dielectric correlation function in PbF

+WO

+GeO

(PWG)glass ceramics was proposed.It shows that Raman scattering selection-rules are broken by the short coherent length of the right vibrating modes in the disorder materials.Expression formula of first order Raman scattering intensity was derived and analyzed based on state density function and amplitude change of right vibrating mode with frequencies.

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