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. https://resolver.caltech.edu/CaltechAUTHORS:20160208-090758378
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Abstract
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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| Additional Information: | © 2015 SPIE. presentation video on SPIE's Digital Library. | |||||||||
| Series Name: | Proceedings of SPIE | |||||||||
| Issue or Number: | 9544 | |||||||||
| DOI: | 10.1117/12.2191641 | |||||||||
| Record Number: | CaltechAUTHORS:20160208-090758378 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160208-090758378 | |||||||||
| 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; http://dx.doi.org/10.1117/12.2191641 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 64291 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 08 Feb 2016 17:29 | |||||||||
| Last Modified: | 10 Nov 2021 23:28 |
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