ar X iv : p hy si cs / 0 60 50 93 v 1 1 1 M ay 2 00 6 Focusing and phase compensation of paraxial beams by a left - handed material slab


Abstract On the basis of angular spectrum representation, a formalism describing paraxial beams propagating through an isotropic left-handed material (LHM) slab is presented. The treatment allows us to introduce the ideas of beam focusing and phase compensation by LHM slab. Because of the negative refractive index of LHM slab, the inverse Gouy phase shift… (More)