拉曼光谱退偏度实验数据处理方法改进IMPROVEMENT OF DATA PROCESSING METHOD FOR DEPOLARIZATION OF RAMAN SPECTRUM
王风丽
摘要(Abstract)：
针对CCl4拉曼光谱退偏度实验中实验值与理论值间存在偏差较大的问题,提出了利用专业的数据处理软件扣除本底噪声,以提高实验结果的可靠性。分别采用多峰拟合和单峰拟合的方法扣除拉曼光谱的本底,计算分析了退偏度与理论值的偏差。结果表明:多峰拟合时,扣除的是斯托克斯或反斯托克斯3个峰的共同本底,忽略瑞利散射峰对其附近拉曼散射峰影响大的因素,单峰拟合扣除的是每一个拉曼散射峰的本底,使得单峰拟合的光谱强度与实际更接近,退偏度与理论值偏差最小。
关键词(KeyWords)： 拉曼光谱;退偏度;多峰拟合;单峰拟合
基金项目(Foundation): 同济大学第十一期实验教学改革项目
作者(Author): 王风丽
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