【摘要】 采用多种激光和不同功率等,对谷氨酸钠晶体进行了激光拉曼光谱的影响研究。结果表明不同波长和功率的光源,对测定存在一定的影响,谱峰位移在6cm-1以内。紫外激光由于光能量较大对样品有一定的破坏作用,造成拉曼光谱的减弱和泯灭,需采用光路衰减。拉曼谱峰的响应与光源的功率有着很好的线性关系,其相关系数r0·999。首次提出单位光功率所产生的拉曼光强与所用的波长有关,与所用的光功率无关。更多还原

【Abstract】 The influences of different laser source and different light power on laser Raman spectra were studied for the sodium glutamic acid. The results show that some influences existed using different wavelength and power of light source the peak shifting 6 cm~ -1 . As UV laser has great light power, the samples were destroyed, making the Raman spectra reduce or disappear. The attenuation of light was needed. The linear relation existed between the Raman intensity and the power of laser light source, and the correlation coefficient was more then 0.999. The Raman intensity per light power unit was related to the wavelength, and was not related to the power of laser source.更多还原