• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International symposium on photoelectronic detection and imaging >The research of Raman spectra measurement system based on tiled-grating monochromator
【24h】

The research of Raman spectra measurement system based on tiled-grating monochromator

机译：基于平铺光栅单色仪的拉曼光谱测量系统的研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A set of Raman spectrum measurement system, essentially a Raman spectrometer, has been independently designed and accomplished by our research group. This system adopts tiled-grating structure, namely two 50mm × 50mm holographic gratings are tiled to form a big spectral grating. It not only improves the resolution but also reduces the cost. This article outlines the Raman spectroscopy system's composition structure and performance parameters. Then corresponding resolutions of the instrument under different criterions are deduced through experiments and data fitting. The result shows that the system's minimum resolution is up to 0.02nm, equivalent to 0.5cm~(-1) wavenumber under Rayleigh criterion; and it will be up to 0.007nm, equivalent to 0.19cm~(-1) wavenumber under Sparrow criterion. Then Raman spectra of CCl_4 and alcohol have been obtained by the spectrometer, which agreed with the standard spectrum respectively very well. Finally, we measured the spectra of the alcohol solutions with different concentrations and extracted the intensity of characteristic peaks from smoothed spectra. Linear fitting between intensity of characteristic peaks and alcohol solution concentrations has been made. And the linear correlation coefficient is 0.96.
机译：我们的研究小组已独立设计并完成了一套拉曼光谱测量系统，本质上是拉曼光谱仪。该系统采用平铺光栅结构，即将两个50mm×50mm全息光栅平铺形成一个大光谱光栅。它不仅提高了分辨率，而且降低了成本。本文概述了拉曼光谱系统的组成结构和性能参数。然后通过实验和数据拟合得出不同条件下仪器的相应分辨率。结果表明，该系统的最小分辨率可达0.02nm，在瑞利准则下相当于0.5cm〜（-1）波数。最高可达0.007nm，相当于Sparrow标准下的0.19cm〜（-1）波数。用分光光度计得到了CCl_4和醇的拉曼光谱，与标准光谱非常吻合。最后，我们测量了不同浓度的醇溶液的光谱，并从平滑光谱中提取了特征峰的强度。在特征峰的强度与酒精溶液浓度之间进行了线性拟合。线性相关系数为0.96。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号