Optical Fano resonances in photonic crystal slabs near diffraction threshold anomalies
A. B. Akimov+, N. A. Gippius+*, S. G. Tikhodeev+
+A.M. Prokhorov General Physics Institute RAS, 119991 Moscow, Russia
*LASMEA, UMR 6602 CNRS, Université Blaise Pascal, 63177 Aubière, France
Optical Fano resonances due to resonant eigenmodes in a
structure (photonic crystal slab) are investigated theoretically.
The special attention is focused
on the behavior of the resonances near
a diffraction threshold. A new formulation of
the resonant mode approximation for the optical scattering matrix near
the diffraction threshold anomalies is proposed.