Classification of electromagnetic resonances in finite inhomogeneous three-dimensional structures

Details Classification of electromagnetic resonances in finite inhomogeneous three-dimensional structures Classification of electromagnetic resonances in finite inhomogeneous three-dimensional structures

2005-09-30

arxiv.org/abs/physics/0509259v1

Phys. Rev. Lett. 96, 023904 (2006)

Physics

Classical Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.96.023904

We present a simple and unified classification of macroscopic electromagnetic resonances in finite arbitrarily inhomogeneous isotropic dielectric 3D structures situated in free space. By observing the complex-plane dynamics of the spatial spectrum of the volume integral operator as a function of angular frequency and constitutive parameters we identify and generalize all the usual resonances, including complex plasmons, real laser resonances in media with gain, and real quasi-static resonances in media with negative permittivity and gain.

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