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math-ph2019
On spurious solutions encountered in Helmholtz scattering resonance computations in R^d with applications to nano-photonics and acoustics
Juan Carlos Araujo Cabarcas, Christian Engström
In this paper, we consider a sorting scheme for potentially spurious scattering resonant pairs in one- and two-dimensional electromagnetic problems and in three-dimensional acousti…
math-ph2015★ 2 cited
Non-linear eigenvalue problems and applications to photonic crystals
Christian Engström, Heinz Langer, Christiane Tretter
We establish new analytic and numerical results on a general class of rational operator Nevanlinna functions that arise e.g. in modelling photonic crystals. The capability of these…