Next Article in Journal
Performance Evaluation of a Magnetically Actuated Capsule Microrobotic System for Medical Applications
Previous Article in Journal
Bonding Strength of a Glass Microfluidic Device Fabricated by Femtosecond Laser Micromachining and Direct Welding
Previous Article in Special Issue
A Diffusion-Based pH Regulator in Laminar Flows with Smartphone-Based Colorimetric Analysis
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Micromachines 2018, 9(12), 640; https://doi.org/10.3390/mi9120640

High Sensitivity Photonic Crystal Fiber Refractive Index Sensor with Gold Coated Externally Based on Surface Plasmon Resonance

1
State Key Laboratory of Synthetical Automation for Process Industries, College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
2
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
*
Author to whom correspondence should be addressed.
Received: 31 October 2018 / Revised: 22 November 2018 / Accepted: 30 November 2018 / Published: 3 December 2018
(This article belongs to the Special Issue Optofluidics 2018)
Full-Text   |   PDF [3553 KB, uploaded 3 December 2018]   |  
  |   Review Reports

Abstract

In this paper we propose a gold-plated photonic crystal fiber (PCF) refractive index sensor based on surface plasmon resonance (SPR), in which gold is coated on the external surface of PCF for easy fabrication and practical detection. The finite element method (FEM) is used for the performance analysis, and the numerical results show that the thickness of the gold film, the refractive index of the analyte, the radius of the air hole in the first layer, the second layer, and the central air hole can affect the sensing properties of the sensor. By optimizing the sensor structure, the maximum wavelength sensitivity can reach 11000 nm/RIU and the maximum amplitude sensitivity can reach 641 RIU−1. Due to its high sensitivity, the proposed sensor can be used for practical biological and chemical sensing. View Full-Text
Keywords: Photonic crystal fiber; surface plasmon resonance; refractive index; sensor; finite element method Photonic crystal fiber; surface plasmon resonance; refractive index; sensor; finite element method
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Li, X.; Li, S.; Yan, X.; Sun, D.; Liu, Z.; Cheng, T. High Sensitivity Photonic Crystal Fiber Refractive Index Sensor with Gold Coated Externally Based on Surface Plasmon Resonance. Micromachines 2018, 9, 640.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top