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Proceedings Paper

High performance refractive index sensing in multimode plasmonic waveguide
Author(s): Joonsoo Kim; Seung-Yeol Lee; Hyeonsoo Park; Byoungho Lee
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Paper Abstract

We propose a scheme to extend dynamic range of a Fabry-Perot (FP) resonator-based refractive index sensor while maintaining the sensitivity. We considered an intensiometric refractive index sensor using an FP resonator in a plasmonic waveguide which is formed by mode selective mirrors. Then, we demonstrated that the intensity degeneracy is a cause of small dynamic range. Lastly, we found that mode dependent transmission characteristics of the FP resonator and 180-degree phase shift across FP resonances can be exploited for extension of dynamic range.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965521 (1 July 2015); doi: 10.1117/12.2184396
Show Author Affiliations
Joonsoo Kim, Seoul National Univ. (Korea, Republic of)
Seung-Yeol Lee, Seoul National Univ. (Korea, Republic of)
Hyeonsoo Park, Seoul National Univ. (Korea, Republic of)
Byoungho Lee, Seoul National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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