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An integrated photoluminescence sensing platform using a single-multi-mode fiber coupler-based probe

Author(s)
Long, Feng; Zhu, Anna; Shi, Hanchang
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Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/
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Abstract
We demonstrate an integrated fiber optic photoluminescence sensing platform using a novel single-multi-mode fiber coupler (SMFC)-based probe with high collection efficiency for fluorescence signals. The SMFC, prepared using fused biconical taper technology, not only transmits excitation light, but also collects and transmits fluorescence. The entire system does not use complex optical components and rarely requires optical alignment. The simple structure of the SMFC considerably improves the light transmission efficiency, signal-to-noise ratio, and sensitivity of the system. Theoretical and experimental results show that the proposed probe increases the collection efficiency by more than eight-fold compared with a bifurcated fiber probe. The performance of the proposed probe was experimentally evaluated by measuring the fluorescence spectra of well-known targets and a fresh Tall Fescue leaf. ©2014 Keywords: photoluminescence; optical fiber coupler; fiber probe; fluorescence measurement
Date issued
2014-03-21
URI
https://hdl.handle.net/1721.1/125093
Department
Massachusetts Institute of Technology. Department of Chemistry
Journal
Sensors
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Long, Feng, Anna Zhu, and Hanchang Shi, "An integrated photoluminescence sensing platform using a single-multi-mode fiber coupler-based probe." Sensors 14, 3 (Mar. 2014): p. 5677-86 doi 10.3390/s140305677 ©2014 Author(s)
Version: Final published version
ISSN
1424-8220

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