On-Fiber Plasmonic Interferometer for Multi-Parameter Sensing

Published

April 20, 2015

Author(s)

Zhijian Zhang, Yongyao Chen, Haijun H. Liu, Hyungdae Bae, Douglas A. Olson, Miao Yu

Abstract

We demonstrate a novel miniature multi-parameter sensing device based on a plasmonic interferometer fabricated on a fiber facet in the optical communication wavelength range. This device enables the coupling between surface plasmon resonance and plasmonic interference in the structure, which are the two essential mechanisms for multi-parameter sensing. We experimentally show that these two mechanisms have distinctive responses to temperature and refractive index, rendering the device the capability of simultaneous temperature and refractive index measurement on an ultra-miniature form factor. A high refractive index sensitivity of 162 nm/RIU and a high temperature sensitivity of -61.6 pm/ oC is achieved with our device.

Citation

Optics Letters

Volume

23

Issue

8

Pub Type

Journals

Download Paper

https://doi.org/10.1364/OE.23.010732

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Keywords

fiber optic sensors, interferometer, microstructured fibers, surface plasmons

Citation

Zhang, Z. , Chen, Y. , Liu, H. , Bae, H. , Olson, D. and Yu, M. (2015), On-Fiber Plasmonic Interferometer for Multi-Parameter Sensing, Optics Letters, [online], https://doi.org/10.1364/OE.23.010732, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=917457 (Accessed October 10, 2025)