Document Type

Conference Proceeding

Publication Date

12-14-2012

Abstract

When a periodic anisotropic layered medium is interrupted by a slab of contrasting material, electromagnetic resonance can be manifest in a variety of ways. In one scenario, anisotropy allows for frequency intervals in which waves propagating perpendicular to the layers coexist with evanescent waves. This permits energy to be trapped within the slab at frequencies embedded in the continuous spectrum. These are unstable states that result in resonance under small perturbations. In another scenario, a stationary inflection point in the dispersion relation of an ambient magnetic anisotropic layered medium leads to unidirectional propagation and resonant interaction between Bloch waves and the contrasting layer. Analysis of energetic interactions between waves allows for a detailed understanding of these resonances. © 2012 IEEE.

Publication Source (Journal or Book title)

International Conference on Mathematical Methods in Electromagnetic Theory MMET

First Page

227

Last Page

232

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