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Resonant frequencies for a narrow strip grating
Author(s) -
Ammari Habib,
Béreux Natacha,
Nédélec JeanClaude
Publication year - 1999
Publication title -
mathematical methods in the applied sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.719
H-Index - 65
eISSN - 1099-1476
pISSN - 0170-4214
DOI - 10.1002/(sici)1099-1476(19990910)22:13<1121::aid-mma75>3.0.co;2-e
Subject(s) - mathematics , meromorphic function , diffraction , perturbation (astronomy) , operator (biology) , mathematical analysis , homogeneous , boundary value problem , distribution (mathematics) , boundary (topology) , physics , optics , quantum mechanics , chemistry , combinatorics , biochemistry , repressor , transcription factor , gene
This paper deals with the existence and the distribution of the resonances associated with the Maxwell system in a periodic infinite structure, obtained by loading a substrate with a periodic perturbation. We give an integral formulation of the homogeneous diffraction problem. By boundary integral operators method, the existence and distribution of resonances is reduced to the determination of the characteristic values of two meromorphic operator valued functions. We give existence results on complex resonances close to the resonances of the substrate and also on real resonances. Copyright © 1999 John Wiley & Sons, Ltd.