液芯光纤共振拉曼光谱  

Resonance Raman Spectra in Liquid core Optical Fiber

作　　者：高淑琴[1,2] 里佐威[1,2] 李继男 张伟[1,2] 

机构地区：[1]吉林大学物理系 [2]吉林工业大学

出　　处：《中国激光》1997年第8期738-740,共3页Chinese Journal of Lasers

基　　金：国家自然基金

摘　　要：在液芯光纤内产生共振拉曼效应，可以提高拉曼光谱强度１０９倍。用５１４．５ｎｍ波长、０．８０ｍＷ激光，１．４４ｍ光纤和６０ｍＷ激光，２．２３ｍ光纤分别获得了浓度为２×１０－９ｍｏｌ／Ｌ和９．６×１０－１２ｍｏｌ／Ｌ的β－胡罗卜素在ＣＳ２中的光纤共振剌曼光谱。实验中发现，低浓度下β－胡罗卜素拉曼光谱频移发生变化，并且，随着浓度的降低，其频移变化增大。The resonance Raman effect is produced in a liquid core optical fiber. The Raman spectra intensity can be increased by 10 9 times. The resonance Raman spectrum of β carotene in CS 2 has been obtained. The concentration is 9.6×10 -12 mol/L. The laser power is 60 mW. The optical fiber length is 2.23 m, the inside diameter of the hollowcore optical fiber is 200 μm. In experiment we have found that frequency deviation of Raman spectra shifts when the concentration of β carotene in CS 2 is lower.

关 键 词：液芯光纤 共振拉曼光谱 频移 激光光谱 

分 类 号：TN25[电子电信—物理电子学] O433.54[机械工程—光学工程]