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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 477-480 |
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Panahi T, Nozhat N. Design and Simulation of Broadband Plasmonic Switch Based on Vanadium Dioxide in Infrared Region. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :477-480
URL: http://opsi.ir/article-1-2095-en.html
URL: http://opsi.ir/article-1-2095-en.html
1- Department of Electrical Engineering, Shiraz University of Technology
Abstract: (1502 Views)
In this paper, a plasmonic nanoswitch that is composed of vanadium dioxide (VO2) in infrared region is designed and simulated. The optical switching of this nanostructure is due to the phase transition of insulation to metal in the VO2 layer with temperature change. The phase transition of the VO2 layer results in a change in the absorption spectrum of the nanostructure. By choosing the values of 340 nm and 20 nm for the thicknesses of the SiO2 and VO2 layers, respectively, the absorptions of above 99% in the insulation phase and near zero in the metal phase are obtained. Therefore, the attained extinction ratio of the proposed switch is 11.8 dB. Obtained results demonstrate the high potential of vanadium oxides as efficient material for plasmonic devices such as modulators and sensors at optical frequencies.
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