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WANG Kun, ZHANG Xin-zheng, WANG Zhen-hua, TANG Li-qin, WU Qiang, XU Jing-jun. Enhancement of SNR and precision in measurement of time resolved fluorescence spectra[J]. LASER TECHNOLOGY, 2005, 29(2): 126-129.
Citation: WANG Kun, ZHANG Xin-zheng, WANG Zhen-hua, TANG Li-qin, WU Qiang, XU Jing-jun. Enhancement of SNR and precision in measurement of time resolved fluorescence spectra[J]. LASER TECHNOLOGY, 2005, 29(2): 126-129.
shu

Enhancement of SNR and precision in measurement of time resolved fluorescence spectra

  • 1.

    Ultrafast Photonics Laboratory, School of TEDA Applied Physics, Nankai University, Tianjin 300457, China;

  • 2.

    Photonics Research Center, College of Physical Science, Nankai University, Tianjin 300071, China

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  • Received Date: March 25, 2004
  • Revised Date: May 24, 2004
  • Published Date: March 24, 2005
    Graphical Abstract
    • Abstract
  • An experiential model of random noise is setup to simulate the ultrafast fluorescence decay for researching how the experiment parameters influence the measurement of time resolved fluorescence spectra.It is found that the SNR can be improved extremely by increasing the gating time and precisi on can be improved by decreasing the delaying time.So the feeble fluorescence signal can be measured and the time resolving degree can be enhanced.The ratio between each decay component's initial intensity varies with different gating time.The relationship between them has been found and the actual value can be deduced from measurement result.The experiment results of GaP testifies our model and the simulation conclusion.This method is successfully used to measure the time resolved fluorescence spectra of LN:Er whose fluorescence is weak.
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    • References (8)
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