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Sensors 2016, 16(6), 784;

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

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
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)
Full-Text   |   PDF [4063 KB, uploaded 28 May 2016]   |  


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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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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