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Tunable metasurfaces (Presentation Recording)

Atwater, Harry A. (2015) Tunable metasurfaces (Presentation Recording). In: Metamaterials, Metadevices, and Metasystems. Proceedings of SPIE. No.9544. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 954422. ISBN 978-1-62841-710-4.

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Metasurfaces composed of sub-wavelength artificial structures show promise for extraordinary light-manipulation and development of ultrathin optical components such as lenses, wave plates, orbital angular detection, and holograms over a broad range of the electromagnetic spectrum. However structures developed to date do not allow for post-fabrication control of antenna properties. We have investigated the integration of the transparent conductor indium tin oxide (ITO) active elements to realize gate-tunable phased arrays of subwavelength patch antenna in a metasurface configuration to enable gate tunable permittivity. The magnetic dipole resonance of each patch antenna interacts with the carrier density-dependent permittivity resonance of the ITO to enable phase and amplitude tunability. Operation of patch antennas and beam steering phased arrays will be discussed.

Item Type:Book Section
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Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2015 SPIE. presentation video on SPIE's Digital Library.
Series Name:Proceedings of SPIE
Issue or Number:9544
Record Number:CaltechAUTHORS:20160208-090758378
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Official Citation: Harry A. Atwater "Tunable metasurfaces (Presentation Recording)", Proc. SPIE 9544, Metamaterials, Metadevices, and Metasystems 2015, 954422 (October 5, 2015); doi:10.1117/12.2191641;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64291
Deposited By: Ruth Sustaita
Deposited On:08 Feb 2016 17:29
Last Modified:10 Nov 2021 23:28

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