  Plane electromagnetic wave propagating in perfect electromagnetic conductor
(PEMC) is considered. Its wave number has no connection with the frequency. An
interface is introduced between an ordinary isotropic medium and PEMC. The wave
in PEMC is matched to plane electromagnetic wave incident normally on the
interface from the ordinary medium and reflected from it. Then the
plane-parallel slab made of PEMC is considered and a plane wave is found in it.

Classical Physics