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Chinese Journal of Lasers, Volume. 45, Issue 7, 0711001(2018)

A Dual-Axis Confocal Raman Detection Method for Suppressing Fluorescence Interference from Containers

Yan Dai1,2, Zuoren Dong1,3、*, Minghui Liu1,2, Guofeng Xin1, Yanguang Sun1, and Haiwen Cai1
Author Affiliations
  • 1 Key Laboratory of Space Laser Communication and Detection Technology, Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2 University of Chinese Academy of Sciences, Beijing 100049, China
  • 3 Nanjing Simple & Smart Instruments Co. Ltd., Nanjing, Jiangsu 210038, China;
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    (a) Scheme of conventional confocal and coaxial Raman detection; (b) principle of confocal and coaxial optical path

    Fig. 1. (a) Scheme of conventional confocal and coaxial Raman detection; (b) principle of confocal and coaxial optical path

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    (a) Principle of dual-axis confocal optical path; (b) detail figure

    Fig. 2. (a) Principle of dual-axis confocal optical path; (b) detail figure

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    Experimental setup diagram

    Fig. 3. Experimental setup diagram

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    Experimental optical path

    Fig. 4. Experimental optical path

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    Relationship between Raman intensity at 900.30 nm and angle of dual-axis

    Fig. 5. Relationship between Raman intensity at 900.30 nm and angle of dual-axis

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    (a) Raman spectra of sorbitol; (b) enlarge image at 900.30 nm

    Fig. 6. (a) Raman spectra of sorbitol; (b) enlarge image at 900.30 nm

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    Comparison of Raman spectra of sorbitol

    Fig. 7. Comparison of Raman spectra of sorbitol

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    Comparison of Raman spectra of bisphenol A

    Fig. 8. Comparison of Raman spectra of bisphenol A

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    Yan Dai, Zuoren Dong, Minghui Liu, Guofeng Xin, Yanguang Sun, Haiwen Cai. A Dual-Axis Confocal Raman Detection Method for Suppressing Fluorescence Interference from Containers[J]. Chinese Journal of Lasers, 2018, 45(7): 0711001

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    Paper Information

    Category: spectroscopy

    Received: Dec. 15, 2017

    Accepted: --

    Published Online: Sep. 11, 2018

    The Author Email: Dong Zuoren (zrdong@siom.ac.cn)

    DOI:10.3788/CJL201845.0711001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology