• Optoelectronics Letters
  • Vol. 9, Issue 2, 139 (2013)
Li HUA1、*, Hong-yun GAO1, Min LI1, and En-jie SUN2
Author Affiliations
  • 1Department of Physics, Wuhan University of Technology, Wuhan 430070, China
  • 2Department of Chemistry, Wuhan University of Technology, Wuhan 430070, China
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    Abstract

    A high-efficiency capillary-fiber optic probe is developed for measuring the concentration of trace elements. The optimal probe consists of an excitation fiber (incident fiber) and a ring of collection fibers which is made up of 6 fibers. Both simulation and experiment results show that the structure gives the higher coupling efficiency with a reasonable capillary diameter. The coupling efficiency of the probe is determined by the number and arrangement of the fibers, internal diameter and length of the fiber optic sensing probe, and the end reflectivity of the capillary. The concentration of the carbonic anhydrase solution and dezincification reagents also affect the efficiency. A fluorescence efficiency of 2.4% is obtained in zinc detection experiment.Central Universities (No.2010-Ia-020), and the Self-Determined and Innovative Research Funds of WUT (No.2012-Va-104).
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    HUA Li, GAO Hong-yun, LI Min, SUN En-jie. An efficient fiber fluorescence probe for the detection of trace elements[J]. Optoelectronics Letters, 2013, 9(2): 139
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    Received: Jan. 7, 2013
    Accepted: --
    Posted: Feb. 1, 2013
    Published Online: Jul. 13, 2020
    The Author Email: Li HUA (hualidehua@163.com)