高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (2): 223.

• 研究论文 • 上一篇    下一篇

二维凝聚体系中单轴取向分子的偏振Raman散射强度

张韫宏1, 梁映秋2   

  1. 1. 厦门大学化学系, 厦门 361005;
    2. 南京大学化学系
  • 收稿日期:1991-01-28 修回日期:1992-11-17 出版日期:1993-02-24 发布日期:1993-02-24
  • 通讯作者: 张韫宏
  • 基金资助:

    国家科学技术委员会基础性重大关键项目资助课题

Polarized Raman Scattering Intensities of Uniaxially Oriented Molecules in Two-dimensional Condensed System

ZHANG Yun-Hong1, LIANG Ying-Qiu2   

  1. 1. Department of Chemistry, Xiamen University, Xiamen, 361005;
    2. Department of Chemistry, Nanjing University
  • Received:1991-01-28 Revised:1992-11-17 Online:1993-02-24 Published:1993-02-24

PDF (PC)

被引次数

4

摘要： 分析了薄膜体系几种常用测量坐标下的偏振Raman散射强度表达式,发现当测量坐标与膜坐标重叠对,各种偏振Raman散射强度只需用膜坐标中的Raman散射活性来表达。如果这两个坐标不重叠,需进一步求出膜坐标中Raman张量元二次交叉项的平均值。本文给出了单轴唯一角取向模型下这些二次交叉项的平均值表达式及取向分布模型下膜坐标中所有Raman张量元二次项平均值。

关键词: 分子取向, Raman散射活性, 二维凝聚体系

Abstract: In usual measure coordinates, the four kinds of polarized Raman scattering intensities for ultrathin films can be expressed only by the Raman scattering activities of the membrane coordinate if the measure coordinates are overlapped with the membrane coordinate.Otherwise, the average values for the quadric cross terms of Raman tensor elements in the membrane coordinate may appear in some intensity expression.In the article, these average values were given under the uniaxially oriented model with a fixed angle.And all of the average values of quadric terms of Raman tensor elements in the membrane coordinate were giien under uniaxial orientation distribution model.

Key words: Molecular orientation, Raman scattering activities, Two-dimertsional condensed system

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