A Highly Sensitive SPR Sensors Based on Two Parallel PCFs for Low Refractive Index Detection

Famei Wang; Chao Liu; Zhijie Sun; Tao Sun; Banghua Liu; Paul K. Chu

doi:10.1109/JPHOT.2018.2856273

IEEE Photonics Journal (Jan 2018)

A Highly Sensitive SPR Sensors Based on Two Parallel PCFs for Low Refractive Index Detection

Famei Wang,
Chao Liu,
Zhijie Sun,
Tao Sun,
Banghua Liu,
Paul K. Chu

Affiliations

Famei Wang: Institute of Materials Processing and Intelligent Manufacturing, Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin, China
Chao Liu: ORCiD; School of Electronics Science, Northeast Petroleum University, Daqing, China
Zhijie Sun: ORCiD; Institute of Materials Processing and Intelligent Manufacturing, Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin, China
Tao Sun: Institute of Microelectronics, Agency of Science, Technology and Research (A*STAR), Singapore
Banghua Liu: Institute of Planning and Design, Natural Gas Company, Daqing Oil Field Limited Company, Daqing, China
Paul K. Chu: ORCiD; Department of Physics and Materials Science, City University of Hong Kong, Hong Kong

DOI: https://doi.org/10.1109/JPHOT.2018.2856273
Journal volume & issue: Vol. 10, no. 4
pp. 1 – 10

Abstract

Read online

Based on two parallel photonic crystal fibers (PCFs) with D-shape structure, a novel surface plasmon resonance (SPR) sensor with low refractive index (RI) detection at near-infrared wavelengths is described. According to the coupled-mode theory, directional power transfer between the two fiber cores is enhanced by resonant coupling between the surface plasmon modes and fiber core-guided modes. In comparison with corresponding single D-shape PCF, a maximum spectral sensitivity up to 13 500 nm/RIU and resolution of 7.41 × 10-6 RIU for RI detection range between 1.27 and 1.32 are achieved. The proposed two parallel D-shape PCFs-SPR sensor with lower RI detection range offer large potential in the fields of pharmaceutical inspection and pharmaceutical leakage monitoring.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

About the journal

Abstract

Keywords