高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (12): 2300.

• 研究论文 • 上一篇    下一篇

溶液浓度对拉曼光谱线宽和频移影响的实验研究

尹建华, 高淑琴, 徐欣锋, 里佐威   

  1. 吉林大学物理学院, 长春130023
  • 收稿日期:2002-04-09 出版日期:2002-12-24 发布日期:2002-12-24
  • 通讯作者: 高淑琴(1946年出生),女,教授,从事分子光谱研究.E-mail:shuquigao@163.com E-mail:shuquigao@163.com
  • 基金资助:

    国家自然科学基金(批准号:19974013)资助

Experimental Studies on Effect of Concentration of CS2 on Linewidth and Frequency Shift of Raman Spectrum

YIN Jian-Hua, GAO Shu-Qin, XU Xin-Feng, LI Zuo-Wei   

  1. College of Physics, Jilin University, Changchun 130023, China
  • Received:2002-04-09 Online:2002-12-24 Published:2002-12-24

摘要: 将液芯光纤技术用于傅里叶变换拉曼光谱测量中,提高拉曼光谱强度102~104倍.应用该技术,在实验上研究了溶液浓度变化对β-carotene,rhodamine在CS2中的CC键π-π*跃迁拉曼线频移和线宽的影响.实验结果表明,随着浓度降低(1×10-7~1×10-12mol/L),拉曼光谱线峰值发生红移,线宽变窄.

关键词: 液芯光纤, 傅里叶变换, 拉曼光谱, 频移

Abstract: Liquid-core optical fiber technique applied in the measurement of Fourier transform Raman spectra, can enhance the Raman spectral intensity about 102-104 times. Applying this technique, we researched the effect of the variation of the concentrations on the linewidths and frequency shifts of Raman spectral line of β-carotene and rhodamine(in CS2) in relation to the transition of π-π* of C=C bond. The experiment results showed that the red shift happens to the peak value of Raman spectral line, linewidth becomes narrow with the decrease of concentration when the concentration studied is 10-7-10-12 mol/L.

Key words: Liquid-core optical fiber, Fourier transform, Raman spectrum, Frequency shift

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