META Conference, META'10

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Corner modes and edge modes on surface plasmon polariton waveguides having right-angle metallic corners
Hung-chun Chang, Jia-jheng Lin, Wan-ju Tseng

Last modified: 2009-11-07


Using a finite-element imaginary-distance beam propagation method, surface plasmon polariton modes, including corner modes and edge modes, guided on plasmonic waveguides having right-angle metallic corners are accurately analyzed. The propagation length obtained from the imaginary part of the modal propagation constant is calculated. It is found that for the metallic stripe waveguide, edge modes should be paid attention to in addition to the reported bound modes.