• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied optics >Dual-wavelength wide area illumination Raman difference spectroscopy for remote detection of chemicals
【24h】

Dual-wavelength wide area illumination Raman difference spectroscopy for remote detection of chemicals

机译：双波长宽区域照明拉曼差异光谱检测化学品

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Remote Raman instruments have become powerful analytical tools in some special environments. However, ambient daylight is the main limitation in the data acquisition process. To suppress daylight background interference and obtain a high signal-to-background ratio (SBR), we develop a dual-wavelength wide area illumination Raman difference spectroscopy (WAIRDS) system for daytime remote detection. In the WAIRDS system, a wide area illumination scheme and shifted-excitation Raman difference spectroscopy method are used to improve the reliability of collected Raman spectra. Measurements of polystyrene indicate that the WAIRDS system can be operated to obtain background-free Raman spectra under different levels of daylight background interference. The remote results show that the improvement in SBR is about three- to fivefold, and the system can work at distances of up to 9.2 m on a sunny afternoon. Moreover, to be close to the actual detection, the system is used for mineral and explosive raw material detection during daytime measurement. Measurements show that the WAIRDS system will be a useful tool for many remote applications in the future. (C) 2021 Optical Society of America
机译：在某些特殊环境下，远程拉曼仪器已成为强大的分析工具。然而，环境日光是数据采集过程中的主要限制。为了抑制日光背景干扰，获得高信背景比（SBR），我们开发了一种用于日间远程检测的双波长广域照明拉曼差分光谱（WAIRDS）系统。在WAIRDS系统中，采用了广域照明方案和位移激发拉曼差分光谱方法，以提高采集的拉曼光谱的可靠性。聚苯乙烯的测量表明，WAIRDS系统可以在不同程度的日光背景干扰下获得无背景拉曼光谱。远程结果表明，SBR的改善程度约为3到5倍，在晴朗的下午，该系统可以在长达9.2米的距离内工作。此外，为了接近实际检测，该系统用于白天测量期间的矿物和爆炸性原料检测。测量结果表明，WAIRDS系统将成为未来许多远程应用的有用工具。（2021）美国光学学会

著录项

  • 来源
    《Applied optics》 |2021年第12期|共9页
  • 作者

    Ye Jianfeng; Tian Ziyang; Hu Yuxin; Wei Haoyun; Li Yan; Zhao Yi; Zou Mingqiang;

  • 作者单位

    Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

    Instru Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

    Instru Beijing 100084 Peoples R China;

    Beijing Inst Geol &

    Prospecting Engn Beijing 100048 Peoples R China;

    Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

    Instru Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

    Instru Beijing 100084 Peoples R China;

    Chinese Acad Inspect &

    Quarantine Inst Equipment &

    Technol Beijing 100123 Peoples R China;

    Chinese Acad Inspect &

    Quarantine Inst Equipment &

    Technol Beijing 100123 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用;
  • 关键词

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