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How to force COMSOL to find plasmonic modes of a waveguide instead of all other non confined modes?

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Dear All,

I use electromagnetics eigenfrequency modal analysis to find plasmonic modes of a circular metalic waveguide whose radial pattern is in modified bessel form, but I know that the structure have many other non confined modes with bessel pattern in radial direction, I want to force the solver to find only confined plasmonic modes, How can I do so? Any suggestions?

Thanks,

0 Replies Last Post Feb 22, 2017, 7:50 a.m. EST
COMSOL Moderator

Hello Robert Schnider

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