Next Article in Journal
A Vision-Based Approach for Building Telecare and Telerehabilitation Services
Next Article in Special Issue
Whispering Gallery Mode Thermometry
Previous Article in Journal
An Effective Correction Method for Seriously Oblique Remote Sensing Images Based on Multi-View Simulation and a Piecewise Model
Previous Article in Special Issue
Effectiveness Testing of a Piezoelectric Energy Harvester for an Automobile Wheel Using Stochastic Resonance
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(10), 1730; doi:10.3390/s16101730

High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities

Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China
*
Author to whom correspondence should be addressed.
Academic Editor: Stephane Evoy
Received: 17 August 2016 / Revised: 3 October 2016 / Accepted: 12 October 2016 / Published: 18 October 2016
(This article belongs to the Special Issue Resonator Sensors)
View Full-Text   |   Download PDF [3237 KB, uploaded 18 October 2016]   |  

Abstract

In this paper, a type of compact nanosensor based on a metal-insulator-metal structure is proposed and investigated through cascading double asymmetric cavities, in which their metal cores shift along different axis directions. The cascaded asymmetric structure exhibits high transmission and sharp Fano resonance peaks via strengthening the mutual coupling of the cavities. The research results show that with the increase of the symmetry breaking in the structure, the number of Fano resonances increase accordingly. Furthermore, by modulating the geometrical parameters appropriately, Fano resonances with high sensitivities to the changes in refractive index can be realized. A maximum figure of merit (FoM) value of 74.3 is obtained. Considerable applications for this work can be found in bio/chemical sensors with excellent performance and other nanophotonic integrated circuit devices such as optical filters, switches and modulators. View Full-Text
Keywords: reflective index sensor; plasmonics; Fano resonance; metal-insulator-metal waveguide reflective index sensor; plasmonics; Fano resonance; metal-insulator-metal waveguide
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 alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Zhang, X.; Shao, M.; Zeng, X. High Quality Plasmonic Sensors Based on Fano Resonances Created through Cascading Double Asymmetric Cavities. Sensors 2016, 16, 1730.

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]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top