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arXiv · 1305.5550

Absorbing boundary condition for Bloch-Floquet eigenmodes

Chris Fietz
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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.

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Chris Fietz. 2013-05-23. Absorbing boundary condition for Bloch-Floquet eigenmodes. https://doi.org/10.1364/josab.30.002615

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