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Electro-Optically Tunable Multifunctional Metasurfaces

Kafaie Shirmanesh, Ghazaleh and Sokhoyan, Ruzan and Wu, Pin Chieh and Atwater, Harry A. (2020) Electro-Optically Tunable Multifunctional Metasurfaces. ACS Nano, 14 (6). pp. 6912-6920. ISSN 1936-0851. doi:10.1021/acsnano.0c01269.

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Shaping the flow of light at the nanoscale has been a grand challenge for nanophotonics over decades. It is now widely recognized that metasurfaces represent a chip-scale nanophotonics array technology capable of comprehensively controlling the wavefront of light via appropriately configuring subwavelength antenna elements. Here, we demonstrate a reconfigurable metasurface that is multifunctional, i.e., notionally capable of providing diverse optical functions in the telecommunication wavelength regime, using a single compact, lightweight, electronically controlled array with no moving parts. By electro-optical control of the phase of the scattered light from each identical individual metasurface element in an array, we demonstrate a single prototype multifunctional programmable metasurface that is capable of both dynamic beam steering and reconfigurable light focusing. Reconfigurable multifunctional metasurfaces with arrays of tunable optical antennas thus can perform arbitrary optical functions by programmable array-level control of scattered light phase, amplitude, and polarization, similar to dynamic and programmable memories in electronics.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Kafaie Shirmanesh, Ghazaleh0000-0003-1666-3215
Sokhoyan, Ruzan0000-0003-4599-6350
Wu, Pin Chieh0000-0002-5781-9696
Atwater, Harry A.0000-0001-9435-0201
Alternate Title:Electro-Optically Tunable Universal Metasurfaces
Additional Information:© 2020 American Chemical Society. Received: February 13, 2020; Accepted: April 30, 2020; Published: April 30, 2020. This work was supported by Samsung Electronics and the National Aeronautics and Space Administration. P.C.W. acknowledges the support from Ministry of Science and Technology, Taiwan (Grant Nos. 107-2923-M-006-004-MY3; 108-2112-M-006-021-MY3). P.C.W. also acknowledges the support in part by Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU). The authors acknowledge metasurface device fabrication support provided by the Kavli Nanoscience Institute (KNI). Author Contributions: G.K.S., R.S., and H.A.A. conceived the original idea. G.K.S. performed the numerical design, device fabrication, and the optical measurements, analyzed numerical and experimental data, designed and built the PCBs for individual electrical control of metasurface elements, helped with the buildup of the optical setup for measurement, and wrote the manuscript. P.C.W. built the optical setup and performed the numerical simulations for beam steering and focusing. R.S. performed the device physics numerical calculations, helped with data analysis, and wrote the manuscript. H.A.A. organized the project, designed experiments, analyzed the results, and prepared the manuscript. All authors discussed the results and commented on the manuscript. The authors declare no competing financial interest. Preprint version is available at Kafaie Shirmanesh, G.; Sokhoyan, R.; Wu, P. C.; Atwater, H. A. Electro-Optically Tunable Universal Metasurfaces. 2019, 1910.02069. arXiv: physics.optics. (Accessed Oct 4, 2019).
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Samsung ElectronicsUNSPECIFIED
Ministry of Science and Technology (Taipei)107-2923-M-006-004-MY3
Ministry of Science and Technology (Taipei)108-2112-M-006-021-MY3
National Cheng Kung UniversityUNSPECIFIED
Subject Keywords:active metasurface, multifunctional, indium tin oxide, wavefront engineering, beam steering, focusing meta-mirror
Issue or Number:6
Record Number:CaltechAUTHORS:20191217-113937638
Persistent URL:
Official Citation:Electro-optically Tunable Multifunctional Metasurfaces. Ghazaleh Kafaie Shirmanesh, Ruzan Sokhoyan, Pin Chieh Wu, and Harry A. Atwater. ACS Nano 2020 14 (6), 6912-6920; DOI: 10.1021/acsnano.0c01269
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:100333
Deposited By: Tony Diaz
Deposited On:17 Dec 2019 20:49
Last Modified:16 Nov 2021 17:53

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