Adaptive Multigrid Methods for the Vectorial Maxwell Eigenvalue Problem for Optical Waveguide Design

Peter Deuflhard, Frank Schmidt, Tilmann Friese and Lin Zschiedrich
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Peter Deuflhard: Konrad-Zuse-Zentrum für Informationstechnik Berlin
Frank Schmidt: Konrad-Zuse-Zentrum für Informationstechnik Berlin
Tilmann Friese: Konrad-Zuse-Zentrum für Informationstechnik Berlin
Lin Zschiedrich: Konrad-Zuse-Zentrum für Informationstechnik Berlin

A chapter in Mathematics — Key Technology for the Future, 2003, pp 279-292 from Springer

Abstract: Abstract This paper has been motivated by the need for a fast robust adaptive multigrid method to solve the vectorial Maxwell eigenvalue problem arising from the design of optical chips. Our nonlinear multigrid methods are based on a previous method for the scalar Helmholtz equation, which must be modified to cope with the null space of the Maxwell operator due to the divergence condition. We present two different approaches. First, we present a multigrid algorithm based on an edge element discretization of time-harmonic Maxwell’s equations, including the divergence condition. Second, an explicit elimination of longitudinal magnetic components leads to a nodal discretization known to avoid discrete spurious modes also and a vectorial eigenvalue problem, for which we present a multigrid solver. Numerical examples show that the edge element discretization clearly outperforms the nodal element approach.

Keywords: Maxwell’s equations; eigenvalue problem; edge elements; multigrid methods; waveguide; optical chip design (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-55753-8_23

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DOI: 10.1007/978-3-642-55753-8_23

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