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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 701-705 |
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Gharehdashly M Y, Ghadi A, Mirzanejhad S. Design of plasmonic nano-filter using a buffle waveguide and four coupled cavity. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :701-705
URL: http://opsi.ir/article-1-2460-en.html
URL: http://opsi.ir/article-1-2460-en.html
1- Department of Physics, University of Mazandaran, Babolsar
Abstract: (925 Views)
This article is about study and design of plasmonic nano-filters using a buffle waveguide and four coupled cavities. In the designed optical system, we studied the changes in the transmission spectrum by shifting the location of the cavities in the direction of the x-axis by numerical simulation and the FDTD method. These cavities filters some wavelengths and with changing cavity positions, the resonance wavelength shifts. In this nano filter, we used four cavities, that with changing the second and the fourth cavities, we have resonance shift to higher wavelengths for the resonance between 1000nm up to 1200nm, and to lower wavelengths for the resonance between 1400nm up to 1600nm. Also, full width at half maximum decreases with changing the position of cavity for λ_3^res. The results of this study can have many applications for nanoscale optical filtering in all-optical integrated circuits.
Keywords: Nano- filter, Surface plasmon polaritons(SPPs), Fano resonance, Metal-insulator-metal(MIM) waveguide
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