Next Article in Journal
An Eddy Current Testing Platform System for Pipe Defect Inspection Based on an Optimized Eddy Current Technique Probe Design
Previous Article in Journal
Motor Function Evaluation of Hemiplegic Upper-Extremities Using Data Fusion from Wearable Inertial and Surface EMG Sensors
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(3), 585;

Tunable Plasmonic Band-Pass Filter with Dual Side-Coupled Circular Ring Resonators

School of Science, Nanjing University of Science & Technology, Nanjing 210094, China
School of Mathematics & Physics Science, Xuzhou University of Technology, Xuzhou 221018, China
School of Science, Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Jiangnan University, Wuxi 214122, China
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
Authors to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 28 January 2017 / Revised: 7 March 2017 / Accepted: 7 March 2017 / Published: 13 March 2017
(This article belongs to the Section Physical Sensors)
Full-Text   |   PDF [2557 KB, uploaded 14 March 2017]   |  


A wavelength band-pass filter with asymmetric dual circular ring resonators in a metal-insulator-metal (MIM) structure is proposed and numerically simulated. For the interaction of the local discrete state and the continuous spectrum caused by the side-coupled resonators and the baffle, respectively, the transmission spectrum exhibits a sharp and asymmetric profile. By adjusting the radius and material imbedded in one ring cavity, the off-to-on plasmon-induced absorption (PIA) optical response can be tunable achieved. In addition, the structure can be easily extended to other similar compact structures to realize the filtering task. Our structures have important potential applications for filters and sensors at visible and near-infrared regions. View Full-Text
Keywords: integrated optics devices; waveguides; plasmonics; metal-insulator-metal (MIM); sensors integrated optics devices; waveguides; plasmonics; metal-insulator-metal (MIM); sensors

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).

Share & Cite This Article

MDPI and ACS Style

Liu, D.; Wang, J.; Zhang, F.; Pan, Y.; Lu, J.; Ni, X. Tunable Plasmonic Band-Pass Filter with Dual Side-Coupled Circular Ring Resonators. Sensors 2017, 17, 585.

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



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