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Title: Highly tunable elastic dielectric metasurface lenses

Abstract

Abstract Dielectric metasurfaces are two‐dimensional structures composed of nano‐scatterers that manipulate the phase and polarization of optical waves with subwavelength spatial resolution, thus enabling ultra‐thin components for free‐space optics. While high performance devices with various functionalities, including some that are difficult to achieve using conventional optical setups have been shown, most demonstrated components have fixed parameters. Here, we demonstrate highly tunable dielectric metasurface devices based on subwavelength thick silicon nano‐posts encapsulated in a thin transparent elastic polymer. As proof of concept, we demonstrate a metasurface microlens operating at 915 nm, with focal distance tuning from 600 μm to 1400 μm (over 952 diopters change in optical power) through radial strain, while maintaining a diffraction limited focus and a focusing efficiency above 50%. The demonstrated tunable metasurface concept is highly versatile for developing ultra‐slim, multi‐functional and tunable optical devices with widespread applications ranging from consumer electronics to medical devices and optical communications. image

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. T. J. Watson Laboratory of Applied Physics and Kavli Nanoscience Institute California Institute of Technology, 1200 E California Blvd Pasadena CA 91125 USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1401025
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Laser & Photonics Reviews
Additional Journal Information:
Journal Name: Laser & Photonics Reviews Journal Volume: 10 Journal Issue: 6; Journal ID: ISSN 1863-8880
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Kamali, Seyedeh Mahsa, Arbabi, Ehsan, Arbabi, Amir, Horie, Yu, and Faraon, Andrei. Highly tunable elastic dielectric metasurface lenses. Germany: N. p., 2016. Web. doi:10.1002/lpor.201600144.
Kamali, Seyedeh Mahsa, Arbabi, Ehsan, Arbabi, Amir, Horie, Yu, & Faraon, Andrei. Highly tunable elastic dielectric metasurface lenses. Germany. https://doi.org/10.1002/lpor.201600144
Kamali, Seyedeh Mahsa, Arbabi, Ehsan, Arbabi, Amir, Horie, Yu, and Faraon, Andrei. Thu . "Highly tunable elastic dielectric metasurface lenses". Germany. https://doi.org/10.1002/lpor.201600144.
@article{osti_1401025,
title = {Highly tunable elastic dielectric metasurface lenses},
author = {Kamali, Seyedeh Mahsa and Arbabi, Ehsan and Arbabi, Amir and Horie, Yu and Faraon, Andrei},
abstractNote = {Abstract Dielectric metasurfaces are two‐dimensional structures composed of nano‐scatterers that manipulate the phase and polarization of optical waves with subwavelength spatial resolution, thus enabling ultra‐thin components for free‐space optics. While high performance devices with various functionalities, including some that are difficult to achieve using conventional optical setups have been shown, most demonstrated components have fixed parameters. Here, we demonstrate highly tunable dielectric metasurface devices based on subwavelength thick silicon nano‐posts encapsulated in a thin transparent elastic polymer. As proof of concept, we demonstrate a metasurface microlens operating at 915 nm, with focal distance tuning from 600 μm to 1400 μm (over 952 diopters change in optical power) through radial strain, while maintaining a diffraction limited focus and a focusing efficiency above 50%. The demonstrated tunable metasurface concept is highly versatile for developing ultra‐slim, multi‐functional and tunable optical devices with widespread applications ranging from consumer electronics to medical devices and optical communications. image},
doi = {10.1002/lpor.201600144},
journal = {Laser & Photonics Reviews},
number = 6,
volume = 10,
place = {Germany},
year = {Thu Nov 03 00:00:00 EDT 2016},
month = {Thu Nov 03 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/lpor.201600144

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Cited by: 267 works
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