9 citations · 9 across the 2 of their papers we have counts for
4 papers
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…
Computation of scattering resonances in absorptive and dispersive media with applications to metal-dielectric nano-structures
Juan C. Araujo-Cabarcas, Carmen Campos, Christian Engström +1
In this paper we consider scattering resonance computations in optics when the resonators consist of frequency dependent and lossy materials, such as metals at optical frequencies.…
Efficient resonance computations for Helmholtz problems based on a Dirichlet-to-Neumann map
Juan Carlos Araujo-Cabarcas, Christian Engstrom, Elias Jarlebring
We present an efficient procedure for computing resonances and resonant modes of Helmholtz problems posed in exterior domains. The problem is formulated as a nonlinear eigenvalue p…
On spurious solutions in finite element approximations of resonances in open systems
Juan Carlos Araujo-Cabarcas, Christian Engström
In this paper, we discuss problems arising when computing resonances with a finite element method. In the pre-asymptotic regime, we detect for the one dimensional case, spurious so…