Absorbing boundary condition for Bloch-Floquet eigenmodes
Optics
2015-06-16 v1 Materials Science
Abstract
We present an absorbing boundary condition for electromagnetic frequency domain simulations of photonic crystals and metamaterials. This boundary condition can simultaneously absorb multiple Bloch-Floquet eigenmodes of a periodic crystal, including both propagating and evanescent modes. The photonic crystal or metamaterial in question can include lossy, active, anisotropic and even bi-anisotropic inclusions. The absorbing boundary condition is dependent on an orthogonality condition for Bloch-Floquet eigenmodes, a generalized version of which is presented here. We test this absorbing boundary condition numerically and present the results.
Cite
@article{arxiv.1305.5550,
title = {Absorbing boundary condition for Bloch-Floquet eigenmodes},
author = {Chris Fietz},
journal= {arXiv preprint arXiv:1305.5550},
year = {2015}
}