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ABSTRACT
A possible physical mechanism toward realizing negative refraction is theoretically discussed using an oxide-based r superlattice structure. In the superlattice configuration, phonon spectrum coupling among electromagnetic wave, dielectric dipole and magnetic moment vibration is used to realize both negative permeability and negative permittivity in a short frequency range after the resonance. Further material selection has been preliminarily discussed, and the focus will be the realization of such superlattice NIMs for optical frequencies.