Enhancement of Raman Scattering Intensity Due to an Internal-Field Factor

被引：1
|
作者：
Petrov, D. V. [1 ,2 ]
Matrosov, I. I. [1 ]
机构：
[1] Russian Acad Sci, Inst Monitoring Climat & Ecol Syst, Siberian Branch, Tomsk 634055, Russia
[2] Tomsk State Univ, Tomsk 634050, Russia
来源：
OPTICS AND SPECTROSCOPY | 2021年 / 129卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
Raman light scattering; signal intensity amplification; internal field; methane; nitrogen; GAS; SPECTROSCOPY; PRESSURE; DEPENDENCE; CH4;
D O I：
10.1134/S0030400X2105012X
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Enhancement of intensity of Raman scattering signals of gas-media components due to an internal-field factor induced by molecular environment is analyzed. Intensity of fundamental vibrational-rotational Raman band of nitrogen in mixtures with argon and methane at pressures of up to 50 atm is investigated. It is established that intensity of Raman signals of nitrogen at its fixed concentration in the mixtures varies within 4% depending on pressure and environment. A model describing this effect is proposed. Obtained data allow improving the accuracy of gas analysis based on Raman spectroscopy.
引用
收藏
页码：674 / 678
页数：5
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