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Proceedings Paper

Hetero-core-structured fiber optic sensor based on surface plasmon resonance
Author(s): Mitsuhiro Iga; Tsuyoshi Nakazawa; Atsushi Seki; Yuzuru Kubota; Kazuhiro Watanabe
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Paper Abstract

A novel fiber optic sensor technique utilizing hetero-core structure is reported based on surface plasmon resonance (SPR) sensor for refractive index detection. The sensor makes it possible to interrogate between evanescent light wave of the light and outer environment by deliberate leaking of the transmitted light wave into the cladding region. Surface plasmon wave (SPW) due to evanescent wave is excited in a silver film coated on the cladding region of the sensor portion. Experiments were carried out with white light source and glycerin solutions as an analyte. Sensor response has shown sharp SPR curves and their dip shift toward the longer wavelength by increasing the concentration of the sample solution. It has been demonstrated that the hetero-core structured fiber optic sensor could be worked as a spectral, and an amplitude SPR sensor.

Paper Details

Date Published: 17 February 2003
PDF: 6 pages
Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); doi: 10.1117/12.474845
Show Author Affiliations
Mitsuhiro Iga, Soka Univ. (Japan)
Tsuyoshi Nakazawa, Soka Univ. (Japan)
Atsushi Seki, Soka Univ. (Japan)
Yuzuru Kubota, Soka Univ. (Japan)
Kazuhiro Watanabe, Soka Univ. (Japan)

Published in SPIE Proceedings Vol. 4833:
Applications of Photonic Technology 5
Roger A. Lessard; George A. Lampropoulos; Gregory W. Schinn, Editor(s)

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