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Huygens' Metasurfaces: All‐Dielectric Programmable Huygens' Metasurfaces (Adv. Funct. Mater. 19/2020)
Author(s) -
Leitis Aleksandrs,
Heßler Andreas,
Wahl Sophia,
Wuttig Matthias,
Taubner Thomas,
Tittl Andreas,
Altug Hatice
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202070122
Subject(s) - materials science , transmittance , optics , dielectric , optoelectronics , phase (matter) , superresolution , metamaterial , germanium , structural coloration , computer science , physics , photonic crystal , image (mathematics) , quantum mechanics , artificial intelligence , silicon
In article number 1910259, Andreas Tittl, Hatice Altug, and co‐workers develop tunable metasurfaces consisting of hybrid germanium and Ge 3 Sb 2 Te 6 disk meta‐units. Switching the Ge 3 Sb 2 Te 6 between its structural states enables dynamic light phase control with high transmittance. The versatility of these metasurfaces is demonstrated by optically programming spatial light phase distributions with single meta‐unit precision and retrieving high‐resolution phase‐encoded images over large‐areas.