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Active beam steering based on reconfigurable phase-change metasurface

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Abstract

We present the tunable optical response of phase change material Ge2Sb2Te5, which can be used to metasurfaces with varied functionalities. The concept of reconfigurable metasurface, which have different combination of unit cells with various geometries and phase states are proposed. The research is promising to apply to the area of the metadevice.

© 2017 Optical Society of America

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