2003 | OriginalPaper | Chapter
Spectral Theory of Resonances in Electromagnetic Gratings
Author : H. Paul Urbach
Published in: Mathematical and Numerical Aspects of Wave Propagation WAVES 2003
Publisher: Springer Berlin Heidelberg
Included in: Professional Book Archive
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Anomalies in the diffracted efficiencies of periodic gratings often occur near resonances. Using the min-max principle for the eigenvalues of the singular, non-compact, integral operator of the electromagnetic scattering problem, the problem of the existence of resonances is studied and conical incident angles for which resonances exist are constructed.