Abstract
We investigate the refraction phenomena of extraordinary light at aplanar interface associated with a uniaxial left-handed medium. It isfound that the anomalous positive refraction can occur at the interfacefrom an isotropic right-handed medium to a uniaxially anisotropicleft-handed medium. When the optical axis of a uniaxial left-handedmedium is not normal or parallel to the interface, the refraction of thePoynting vector for the extraordinary waves can be either positive ornegative depending on the incident angles, while the refraction of thewave vector is always negative. The physical essential of the anomalouspositive refraction results from the anisotropy of uniaxial crystals.
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