Phase-change materials for programmable dielectric and plasmonic metasurfaces

Thomas Taubner

doi:10.1117/12.2568565

20 August 2020 Phase-change materials for programmable dielectric and plasmonic metasurfaces

Thomas Taubner

Proceedings Volume 11461, Active Photonic Platforms XII; 1146109 (2020) https://doi.org/10.1117/12.2568565
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

We employ Phase-Change Materials (PCMs) for local addressing of individual meta-atoms in both metallic and low-loss dielectric metasurfaces. PCMs provide a switchable dielectric environment for resonant nanostructures, altering their resonance frequencies in a non-volatile, reversible way. Specifically, we introduce a new tunable all-dielectric IR Huygens’ metasurface consisting of multi-layer Ge disk meta-units with strategically incorporated non-volatile PCM and demonstrate the optical programming with single meta-unit precision using hyperspectral measurements.[1] We also introduce a new programmable nanophotonics platform based on the next-generation “plasmonic” PCM In3Sb1Te2 (IST). [1] A. Leitis, A. Heßler, et al. Advanced Functional Materials, accepted (2020).

Conference Presentation

Citation Download Citation

Thomas Taubner "Phase-change materials for programmable dielectric and plasmonic metasurfaces", Proc. SPIE 11461, Active Photonic Platforms XII, 1146109 (20 August 2020); https://doi.org/10.1117/12.2568565

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