Resonant Phenomena in a Periodic Array of Slits Filled With a Metamaterial

Abstract

The TM-wave diffraction problem by a periodic perfectly conducting grating is solved for the single-mode approximation of the slit field. The physical reason of the observed effects is discussed for the case when slits are filled with a conventional positive index magnetodielectric. The obtained solution allows analyzing the periodic arrays of slits filled with an arbitrary metamaterial.