Research Papers

Backward and forward modes guided by metal-dielectric-metal plasmonic waveguides

[+] Author Affiliations
Arthur Davoyan, Ilya V. Shadrivov

Australian National University, Nonlinear Physics Center, 59 Mills Road, Canberra, ACT 0200 Australia

Sergey I. Bozhevolnyi

University of Southern Denmark, Institute of Sensors, Signals and Electrotechnics (SENSE), Neils Bohrs Alle 1, Odense M, DK-5230 Denmark

Yuri S. Kivshar

Australian National University, Nonlinear Physics Center, 59 Mills Road, Canberra, ACT 0200 Australia

J. Nanophoton. 4(1), 043509 (May 7, 2010). doi:10.1117/1.3437397
History: Received December 30, 2009; Revised April 21, 2010; Accepted April 23, 2010; May 7, 2010; Online May 07, 2010
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Abstract

We revisited the problem of the existence of plasmonic modes guided by metal-dielectric-metal slot waveguides. For the case of lossless slot waveguides, we classify the guided modes in the structure with the metal dispersion and found that, in a certain parameter range, three different guided modes coexist at a fixed frequency, two (symmetric and antisymmetric) forward propagating modes and the third, backward propagating antisymmetric mode. We study the properties of the forward and backward plasmonic guided modes in the presence of realistic losses, and discuss the importance of evanescent modes in lossy structures.

© 2010 Society of Photo-Optical Instrumentation Engineers

Topics

Metals ; Waveguides

Citation

Arthur Davoyan ; Ilya V. Shadrivov ; Sergey I. Bozhevolnyi and Yuri S. Kivshar
"Backward and forward modes guided by metal-dielectric-metal plasmonic waveguides", J. Nanophoton. 4(1), 043509 (May 7, 2010). ; http://dx.doi.org/10.1117/1.3437397


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