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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 661-665 |
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Najjari V, Mirzanejad S, Ghadi A. Four channels wavelength plasmonic filter including waveguide and crescent-shape cavity. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :661-665
URL: http://opsi.ir/article-1-2774-en.html
URL: http://opsi.ir/article-1-2774-en.html
Abstract: (847 Views)
Abstract- A plasmonic filter consisting of a Metal-Insulator-Metal waveguide (MIM) with a crescent-shaped cavity is proposed. The transmittance and Full Width at Half Maximum (FWHM) of the resonant peaks have been analyzed by the Finite Difference Time Domain method. The results show the production of four Fano resonances after optimizing the structure that the wavelength and the resonance line-shape can be adjusted by changing the geometry of the device. Thus, this device can be used as band-pass filter. Our studies for the new structure also show that the transmittance at wavelengths greater than 1200nm is almost zero, which is important for the cut-off filters.
Keywords: Plasmon wavelength filter, Metal-Insulator-Metal (MIM) waveguide, plasmonic structures, Finite Difference Time Domain method (FDTD), Surface plasmon-polaritons
Type of Study: Experimental |
Subject:
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