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Journal of Nanophotonics

Design of a high-performance metal–insulator–metal plasmonic demultiplexer
Author(s): Milad T. H. Azar; Mahdi Zavvari; Armin Arashmehr; Yashar Zehforoosh; Pejman Mohammadi
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Paper Abstract

We propose a four-channel plasmonic demultiplexer based on gold–air–gold structure. To do so, an add-drop filter is first proposed consisting of an H-shaped resonant cavity, which is designed to drop a distinct wavelength to other waveguides. Since the selected wavelength depends on the structural parameters of the resonant cavity, two- and four-channel demultiplexers are presented by adding H-shape cavities with different sizes. The results of numerical simulations show that for the total structure, spacing about 50 nm and an average transmission more than 95% for channels are obtained. The proposed device exhibits high-transmission efficiency along with the low channel spacing. The average calculated cross talk is calculated about 18.6    dB .

Paper Details

Date Published: 19 April 2017
PDF: 8 pages
J. Nanophoton. 11(2) 026002 doi: 10.1117/1.JNP.11.026002
Published in: Journal of Nanophotonics Volume 11, Issue 2
Show Author Affiliations
Milad T. H. Azar, Islamic Azad Univ. of Urmia (Iran, Islamic Republic of)
Mahdi Zavvari, Islamic Azad Univ. of Urmia (Iran, Islamic Republic of)
Armin Arashmehr, Islamic Azad Univ. of Urmia (Iran, Islamic Republic of)
Yashar Zehforoosh, Islamic Azad Univ. of Urmia (Iran, Islamic Republic of)
Pejman Mohammadi, Islamic Azad Univ. of Urmia (Iran, Islamic Republic of)


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