Electrically driven reprogrammable phase-change metasurface reaching 80% efficiency

@article{Abdollahramezani2022ElectricallyDR,
  title={Electrically driven reprogrammable phase-change metasurface reaching 80\% efficiency},
  author={Sajjad Abdollahramezani and Omid Hemmatyar and Mohammad Taghinejad and Hossein Taghinejad and Alexander E. Krasnok and Ali A. Eftekhar and Christian Teichrib and Sanchit Deshmukh and Mostafa A El-Sayed and Eric Pop and Matthias Wuttig and Andrea Al{\'u} and Wenshan Cai and Ali Adibi},
  journal={Nature Communications},
  year={2022},
  volume={13}
}
Phase-change materials (PCMs) offer a compelling platform for active metaoptics, owing to their large index contrast and fast yet stable phase transition attributes. Despite recent advances in phase-change metasurfaces, a fully integrable solution that combines pronounced tuning measures, i.e., efficiency, dynamic range, speed, and power consumption, is still elusive. Here, we demonstrate an in situ electrically driven tunable metasurface by harnessing the full potential of a PCM alloy… 
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