摘要
为了实现高分辨率、宽波段的空间外差拉曼光谱探测,使用中阶梯光栅的四个衍射级次,每个级次的对应一定范围光谱,总的光谱探测范围得到了扩增,最终根据设计,搭建了一台中阶梯光栅-平面镜的空间外差拉曼光谱(Echelle-Mirror Spatial Heterodyne Raman Spectroscopy,EMSHRS)实验平台。通过标准光源进行光谱定标得到该仪器的理论光谱分辨率为1.033 cm^(-1),单个衍射级次对应的波段宽度为1058 cm^(-1),最后对三种无机物进行了光谱探测和分析,实验结果表明中阶梯光栅-平面镜型空间外差拉曼光谱技术可实现对无机物的快速、高分辨和宽波段检测,具有良好的应用前景。
In thispaper,an Echelle-Mirror Spatial Heterodyne Raman Spectrometer(Echelle-Mirror Spatial Heterodyne Raman Spectroscopy,EMSHRS)breadboard was designed and built using four diffraction order of an echelle.The calibration procedure is performed using a standard lamp to estimate the spectral resolution(1.033 cm^(-1))and spectral range of one diffraction order(1058 cm^(-1)).The Raman spectrum of p n-pentane,n-octane and isopropyl alcohol are discussed,which demonstrate that the EMSHRS has great prospects for fast and broadband detection in inorganic compounds.
作者
邱俊
陈晋
彭荣超
李泽臻
董理
许嘉悦
严燕丽
林林
张怀岑
吉日嘎兰图
李晓天
齐向东
QIU Jun;CHENG Jing;PENG Rongchao;LI Zezhen;DONG Li;XU Jiayue;YAN Yanli;LIN Lin;ZHANG Huaiceng;JIRI Galantu;LI Xiaotian;QI Xiangdong(School of Biomedical Engineering, Guangdong Medical University, Dongguan 523808, China;Changchun Institute of Optical Precision Machinery and Physics, Chinese Academy of Sciences,Changchun 130033, China;Suzhou Institute of Biomedical Engineering andTechnology, Chinese Academy of Sciences, Changchun 215163, China;Guangdong University of Foreign Studies, Guangzhou 510420, China;Guangdong Provincial People's Hospital, Guangzhou 510080, China)
出处
《光散射学报》
2022年第1期36-39,共4页
The Journal of Light Scattering
基金
国家自然科学基金(项目号:62105074,61975255,U2006209,61505204)
吉林省科技发展计划项目(项目号:20190302047GX,20200404197YY)
广东省基础与应用基础研究基金联合基金(2019A1515110572)
广东医科大学学科建设项目(项目号:4SG21018G)
博士启动项目(项目号:45G21256G)。
关键词
空间外差拉曼光谱
中阶梯
干涉仪
Spatial heterodyne Raman spectroscopy
Middle ladder
Interferometer
