Optofluidic integrated in-fiber fluorescence online optical fiber sensor

    Authors

    X. H. Yang; T. T. Yuan; G. Q. Yue; E. T. Li;L. B. Yuan

    Comments

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    Abbreviated Journal Title

    Sens. Actuator B-Chem.

    Keywords

    Optofluidic; In-fiber sensors; Fiber integrated sensors; GOLD NANOPARTICLES; SUSPENDED CORE; WAVE-GUIDE; DNA; IONS; CHIP; Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation

    Abstract

    An in-fiber integrated fluorescence online optofluidic sensor is realized in a hollow optical fiber with a suspended core. A micro-region for fluorescence quenching reaction is built in the hollow optical fiber. By etching microholes on the surface of the fiber, the fluorescence reagents can be injected into the optical fiber and form microflows in the region. Simultaneously, indicator molecules can be excitated through the evanescent field of the suspended core and the fluorescence is efficiently coupled into the core and can be detected. In this report, the concentration of nitrite can be determined by quenching the fluorescence of rhodamine 6G during optofluidic reaction in the optical fiber. Furthermore, the results demonstrate the feasibility of the integrated in-fiber optofluidic method for trace fluorescence detection. (C) 2015 Elsevier B.V. All rights reserved.

    Journal Title

    Sensors and Actuators B-Chemical

    Volume

    215

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    345

    Last Page

    349

    WOS Identifier

    WOS:000354131200045

    ISSN

    0925-4005

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