Research Papers

Design of a high-performance metal–insulator–metal plasmonic demultiplexer

[+] Author Affiliations
Milad Taleb Hesami Azar

Islamic Azad University, Young Researchers and Elite Club, Urmia Branch, Urmia, Iran

Mahdi Zavvari, Armin Arashmehr, Yashar Zehforoosh, Pejman Mohammadi

Islamic Azad University, Department of Electrical Engineering, Urmia Branch, Urmia, Iran

J. Nanophoton. 11(2), 026002 (Apr 19, 2017). doi:10.1117/1.JNP.11.026002
History: Received November 25, 2016; Accepted March 31, 2017
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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.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Milad Taleb Hesami Azar ; Mahdi Zavvari ; Armin Arashmehr ; Yashar Zehforoosh and Pejman Mohammadi
"Design of a high-performance metal–insulator–metal plasmonic demultiplexer", J. Nanophoton. 11(2), 026002 (Apr 19, 2017). ; http://dx.doi.org/10.1117/1.JNP.11.026002


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