小型紫外拉曼光谱仪

摘要

UV Raman Spectrometer with it intrinsic high sensitivity and lower stray light has attracted much attention in in situ detection of explosives,pollutants and pesticide residues.However,the current commercialize portable Raman spectrometer is excited with visible or IR laser.Herein,we reported a new type of portable UV Raman Spectrometer with the coma abbreviation design through well designed lens system.The spectrometer shows high resolution and wide spectra collection range.%紫外拉曼光谱技术具有拉曼本征散射效率高,受杂散光干扰小等优点,在爆炸物、污染物以及农药残留现场检测等领域有着广阔的应用前景.然而,目前市场上常见的小型或者便携式拉曼光谱仪均采用可见或者近红外激光作为激发光源.本研究在实验室具有自主知识产权的紫外可见共振拉曼光谱仪的基础上,设计了小型紫外拉曼光谱仪,光谱仪采用透镜作为光谱仪的准直镜和聚焦镜,有效减小了慧差造成的影响,实现了高分辨率和宽光谱范围的测试.