15 November 2018 Research on dual-core photonic crystal fiber based on local surface plasmon resonance sensor with silver nanowires
Shengxi Jiao, Sanfeng Gu, Hanrui Yang, Hairui Fang
Author Affiliations +
Abstract
A photonic crystal fiber (PCF) based on local surface plasmon resonance (LSPR) sensor with silver nanowires deposited in two microfluidic detection channels is designed. The coupling characteristics and sensing properties of the proposed sensor are analyzed numerically by finite-element method (FEM). The optical loss spectra of the proposed PCF-LSPR sensor can be effectively tuned by the parameters of the PCF structure and silver nanowires configuration. When the cylindrical silver nanowires number is 12 (single-detection channel), arranged in an even way, and the angle between adjacent cylindrical silver nanowires is 10 deg, an average wavelength sensitivity of 5507.1  nm  /  RIU is obtained in the refractive index (RI) range from 1.330 to 1.360, and a maximum wavelength sensitivity of 9000  nm  /  RIU is achieved in the RI sensing range from 1.355 to 1.360, corresponding to a maximum RI resolution of 1.11  ×  10  −  5  RIU, which can be used to detect slight changes in the RI of an unknown analyte.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) 1934-2608/2018/$25.00 © 2018 SPIE
Shengxi Jiao, Sanfeng Gu, Hanrui Yang, and Hairui Fang "Research on dual-core photonic crystal fiber based on local surface plasmon resonance sensor with silver nanowires," Journal of Nanophotonics 12(4), 046015 (15 November 2018). https://doi.org/10.1117/1.JNP.12.046015
Received: 17 July 2018; Accepted: 22 October 2018; Published: 15 November 2018
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Cited by 4 scholarly publications.
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KEYWORDS
Silver

Nanowires

Sensors

Surface plasmons

Photonic crystal fibers

Finite element methods

Resonance enhancement

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