Affiliation:
1. City University of Hong Kong
Abstract
A simple twin-core D-shape photonic crystal fiber sensor based on surface plasmon
resonance (SPR) is designed for the measurement of refractive indices
(RI). The twin-core D-shape structure enhances the SPR effect, and the MgF2-Au dual-layer film narrows the
linewidth in the loss spectrum, consequently improving both the
sensitivity and figure of merit (FOM). The properties of the sensor
are analyzed by the finite element method. In the RI range of
1.32–1.42, the maximum wavelength sensitivity, FOM, and resolution are
62,000 nm/RIU, 1281RIU−1, and 1.61×10−6, respectively.
Funder
Basic Research Support Project for the Excellent Youth Scholars of Heilongjiang Province
Natural Science Foundation of Heilongjiang Province
China Postdoctoral Science Foundation
City University of Hong Kong
City University of Hong Kong Donation Research
Subject
Computer Vision and Pattern Recognition,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials