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Reconfigurable Non-volatile High-performance Metalens

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Abstract

We demonstrated a varifocal metalens based on the low-loss optical phase-change material Ge2Sb2Se4Tei (GSST). The lens features diffraction-limited performance and full 2n phase tuning range. Aberration- and crosstalk-free imaging using the lens was also demonstrated.

© 2020 The Author(s)

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