Reconfigurable hybrid plasmonic-dielectric metasurfaces

Sajjad Abdollahramezani; Omid Hemmatyar; Hossein Taghinejad; Muliang Zhu; Alexander L. Gallmon; Ali Adibi

doi:10.1117/12.2590717

5 March 2021 Reconfigurable hybrid plasmonic-dielectric metasurfaces

Sajjad Abdollahramezani, Omid Hemmatyar, Hossein Taghinejad, Muliang Zhu, Alexander L. Gallmon, Ali Adibi

Proceedings Volume 11694, Photonic and Phononic Properties of Engineered Nanostructures XI; 116941U (2021) https://doi.org/10.1117/12.2590717
Event: SPIE OPTO, 2021, Online Only

Abstract

We present a dynamic metasurface platform by incorporating the phase-change alloy Ge2Sb2Te5 (GST) into metal-dielectric meta-atoms for active and non-volatile tuning of the optical response. We systematically design a unit cell, which selectively controls the fundamental plasmonic-photonic resonances of the metasurface via the dynamic change of the GST crystalline state. As a proof-of-concept, we experimentally demonstrate miniaturized tunable metasurfaces that globally manipulate amplitude and phase of incident light necessary for near-perfect absorption and anomalous/specular beam deflection, respectively. Our findings further substantiate reconfigurable hybrid metasurfaces as promising candidates for the development of miniaturized energy harvesting and optical signal processing devices.

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Citation Download Citation

Sajjad Abdollahramezani, Omid Hemmatyar, Hossein Taghinejad, Muliang Zhu, Alexander L. Gallmon, and Ali Adibi "Reconfigurable hybrid plasmonic-dielectric metasurfaces", Proc. SPIE 11694, Photonic and Phononic Properties of Engineered Nanostructures XI, 116941U (5 March 2021); https://doi.org/10.1117/12.2590717

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