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Decoupling optical function and geometrical form using conformal flexible dielectric metasurfaces

Kamali, Seyedeh Mahsa and Arbabi, Amir and Arbabi, Ehsan and Horie, Yu and Faraon, Andrei (2016) Decoupling optical function and geometrical form using conformal flexible dielectric metasurfaces. Nature Communications, 7 . Art. No. 11618. ISSN 2041-1723. PMCID PMC4874029. doi:10.1038/ncomms11618.

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Physical geometry and optical properties of objects are correlated: cylinders focus light to a line, spheres to a point and arbitrarily shaped objects introduce optical aberrations. Multi-functional components with decoupled geometrical form and optical function are needed when specific optical functionalities must be provided while the shapes are dictated by other considerations like ergonomics, aerodynamics or aesthetics. Here we demonstrate an approach for decoupling optical properties of objects from their physical shape using thin and flexible dielectric metasurfaces which conform to objects’ surface and change their optical properties. The conformal metasurfaces are composed of silicon nano-posts embedded in a polymer substrate that locally modify near-infrared (λ=915 nm) optical wavefronts. As proof of concept, we show that cylindrical lenses covered with metasurfaces can be transformed to function as aspherical lenses focusing light to a point. The conformal metasurface concept is highly versatile for developing arbitrarily shaped multi-functional optical devices.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle
Kamali, Seyedeh Mahsa0000-0002-6968-811X
Arbabi, Amir0000-0001-8831-7552
Arbabi, Ehsan0000-0002-5328-3863
Horie, Yu0000-0001-7083-1270
Faraon, Andrei0000-0002-8141-391X
Additional Information:© 2016 Macmillan Publishers Limited. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit Received 28 October 2015; Accepted 14 April 2016; Published 19 May 2016. This work was supported by the DOE ‘Light-Material Interactions in Energy Conversion’ Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award no. DE-SC0001293. A.A. and E.A. were supported by Samsung Electronics. A.A. and Y.H. were also supported by DARPA. The device nanofabrication was performed at the Kavli Nanoscience Institute at Caltech. Author contributions: S.M.K., A.A. and A.F. conceived the experiments. S.M.K., A.A., E.A and Y.H. performed the simulations and fabricated the devices. S.M.K., A.A and E.A. performed the measurements, and analysed the data. S.M.K., A.A., E.A. and A.F. co-wrote the manuscript. All authors discussed the results and commented on the manuscript. The authors declare no competing financial interests.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0001293
Samsung ElectronicsUNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
PubMed Central ID:PMC4874029
Record Number:CaltechAUTHORS:20160601-090500911
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Official Citation:Decoupling optical function and geometrical form using conformal flexible dielectric metasurfaces Seyedeh Mahsa Kamali, Amir Arbabi, Ehsan Arbabi, Yu Horie & Andrei Faraon Nature Communications 7, Article number: 11618 doi:10.1038/ncomms11618
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67525
Deposited By: Tony Diaz
Deposited On:01 Jun 2016 20:32
Last Modified:27 Apr 2022 22:50

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