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Sensors 2016, 16(6), 784; doi:10.3390/s16060784

Detuned Plasmonic Bragg Grating Sensor Based on a Defect Metal-Insulator-Metal Waveguide

1
School of Science, Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Jiangnan University, Wuxi 214122, China
2
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 17 April 2016 / Revised: 24 May 2016 / Accepted: 25 May 2016 / Published: 28 May 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [4063 KB, uploaded 28 May 2016]   |  

Abstract

A nanoscale Bragg grating reflector based on the defect metal-insulator-metal (MIM) waveguide is developed and numerically simulated by using the finite element method (FEM). The MIM-based structure promises a highly tunable broad stop-band in transmission spectra. The narrow transmission window is shown to appear in the previous stop-band by changing the certain geometrical parameters. The central wavelengths can be controlled easily by altering the geographical parameters. The development of surface plasmon polarition (SPP) technology in metallic waveguide structures leads to more possibilities of controlling light at deep sub-wavelengths. Its attractive ability of breaking the diffraction limit contributes to the design of optical sensors. View Full-Text
Keywords: plasmonics; Bragg grating sensor; metal-insulator-metal; finite element method plasmonics; Bragg grating sensor; metal-insulator-metal; finite element method
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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).

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MDPI and ACS Style

Qu, S.; Song, C.; Xia, X.; Liang, X.; Tang, B.; Hu, Z.-D.; Wang, J. Detuned Plasmonic Bragg Grating Sensor Based on a Defect Metal-Insulator-Metal Waveguide. Sensors 2016, 16, 784.

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