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How to build the dispersion curves for waveguide
Posted 15.07.2013, 20:18 GMT-4 RF & Microwave Engineering, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3a 1 Reply
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I have a rectangle plasmonic waveguide (Ag on Si with air superstrate) with thickness T and width W. I would like to know what kind of modes can support my waveguide. As I understood, this problem cannot be solved analytically (Pierre Berini, "Plasmon-polariton waves guided by thin lossy metal flms of fnite width: Bound modes of asymmetric structures" DOI: 10.1103/PhysRevB.63.125417) and must be solved numerically.
Thus, I would like to ask how can I build dispersion curves for my waveguide? Thank you
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or
You can use the equation modelling interface and using the formalism shown in
ol.osa.org/abstract.cfm?URI=ol-30-5-453
to obtain the first derivative analitically, then derive one more time numerically.
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cheers,
Felipe BM