Reformulation of the eigenvalue problem in the Fourier modal method with spatial adaptive resolution.
The Fourier modal method equipped with the concept of adaptive spatial resolution (FMMASR) is shown to be naturally more stable than the classical Fourier modal method toward spurious modes that appear with metallic structures. It is demonstrated that this stability can be further improved by reformulating the eigenvalue problem of the FMMASR.
Guizal
B
B
Institut de Physique de Montpellier, Groupe d'Etude des Semiconducteurs, UMR-CNRS 5650, Université de Montpellier 2, Place Bataillon, 34090 Montpellier CEDEX, France. guizal@ges.univ-montp2.fr
Yala
H
H
Felbacq
D
D