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Proceedings Paper

Investigation of the fluorescent efficiency improvement of a novel designed fiber probe for zinc detection
Author(s): Zhong Pan; Min Li
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Paper Abstract

A number of applications of fiber optic sensor for bioluminescence have been widely reported. The key component in fiber optic fluorescent sensing system is sensor probe, whose efficiency will determine the overall sensor performance, and haven't been thoroughly understood in previous studies. Questions about how the probe structural parameters such as length, diameters and N.A. of its fiber components affect the collecting efficiency of the fluorescence signals. In this paper, we present a pinpoint fiber-glass probe aiming at efficient fluorescence collection. According to the geometric optics approach, we model a sensor probe based on the same principle of coupling ratio analysis between a light source and a fiber, and demonstrate the quantitative relations of the fluorescent collecting efficiency and the structural parameters of the probe by simulation and experiment. Our theoretical analysis comes up with a optimal probe geometry which has the highest fluorescent efficiency of the designed fiber optic sensor probe, and reveal detailed relations that the efficiency is direct proportion to the core diameter, NA of receiving fiber, the length and the section radius of the sensing probe, where the ratio of the core diameter to sectional area of the probe is the key factors for the fluorescent efficiency for certain detection accuracy.

Paper Details

Date Published: 9 November 2010
PDF: 8 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78532N (9 November 2010); doi: 10.1117/12.870120
Show Author Affiliations
Zhong Pan, Wuhan Univ. of Technology (China)
Min Li, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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