Electrically driven reprogrammable phase-change metasurface reaching 80% efficiency

Sajjad Abdollahramezani; Omid Hemmatyar; Mohammad Taghinejad; Hossein Taghinejad; Alex Krasnok; Ali A. Eftekhar; Christian Teichrib; Sanchit Deshmukh; Mostafa A. El-Sayed; Eric Pop; Matthias Wuttig; Andrea Alù; Wenshan Cai; Ali Adibi

doi:10.1038/s41467-022-29374-6

Nature Communications (Mar 2022)

Electrically driven reprogrammable phase-change metasurface reaching 80% efficiency

Sajjad Abdollahramezani,
Omid Hemmatyar,
Mohammad Taghinejad,
Hossein Taghinejad,
Alex Krasnok,
Ali A. Eftekhar,
Christian Teichrib,
Sanchit Deshmukh,
Mostafa A. El-Sayed,
Eric Pop,
Matthias Wuttig,
Andrea Alù,
Wenshan Cai,
Ali Adibi

Affiliations

Sajjad Abdollahramezani: School of Electrical and Computer Engineering, Georgia Institute of Technology
Omid Hemmatyar: School of Electrical and Computer Engineering, Georgia Institute of Technology
Mohammad Taghinejad: School of Electrical and Computer Engineering, Georgia Institute of Technology
Hossein Taghinejad: School of Electrical and Computer Engineering, Georgia Institute of Technology
Alex Krasnok: Photonics Initiative, Advanced Science Research Center, City University of New York
Ali A. Eftekhar: School of Electrical and Computer Engineering, Georgia Institute of Technology
Christian Teichrib: Physikalisches Institut IA, RWTH Aachen
Sanchit Deshmukh: Department of Electrical Engineering
Mostafa A. El-Sayed: Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology
Eric Pop: Department of Electrical Engineering
Matthias Wuttig: Physikalisches Institut IA, RWTH Aachen
Andrea Alù: Photonics Initiative, Advanced Science Research Center, City University of New York
Wenshan Cai: School of Electrical and Computer Engineering, Georgia Institute of Technology
Ali Adibi: School of Electrical and Computer Engineering, Georgia Institute of Technology

DOI: https://doi.org/10.1038/s41467-022-29374-6
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 11

Abstract

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The authors demonstrate an efficient platform for electrically driven reconfigurable metasurfaces by using Ge2Sb2Te5 to realize non-volatile, reversible, multilevel, and fast optical modulation and wavefront engineering in the near-infrared spectral range.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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