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Reconfigurable all-dielectric metasurfaces using phase-change chalcogenide Ge2 Sb2Te5

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Abstract

We demonstrate a reconfigurable all-dielectric metasurface comprising of concentric phase-change/high-index materials nanopillars. The dynamic interplay of dominant Mie resonance modes due to the real-time phase-transition of Ge2Sb2Te5 grants 2n phase agility with unprecedented efficiency.

© 2020 The Author(s)

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