Excitation of surface waves with vortex-like structure of the energy flow results in either positive or negative enhanced Goos-Hanchen effect.

Abstract: We study the beam reflection from a layered structure with a left-handed metamaterial. We predict a giant lateral (Goos-Hanchen) shift and splitting of the beam due to the resonant excitation of surface polaritons with a vortexlike energy flow between the rightand left-handed materials.

Keywords: beam; refraction; slabs

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