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Octave bandwidth photonic fishnet-achromatic-metalens

Author

Listed:
  • Abdoulaye Ndao

    (University of California
    University of California San Diego)

  • Liyi Hsu

    (University of California
    University of California San Diego)

  • Jeongho Ha

    (University of California
    University of California San Diego)

  • Jun-Hee Park

    (University of California
    University of California San Diego)

  • Connie Chang-Hasnain

    (University of California)

  • Boubacar Kanté

    (University of California
    University of California San Diego
    Lawrence Berkeley National Laboratory
    University of California)

Abstract

Planar structured interfaces, also known as metasurfaces, are continuously attracting interest owing to their ability to manipulate fundamental attributes of light, including angular momentum, phase, or polarization. However, chromatic aberration, limiting broadband operation, has remained a challenge for metasurfaces-based optical components and imagers. The limitation stems from the intrinsic dispersion of existing materials and design principles. Here we report and experimentally demonstrate polarization-independent fishnet-achromatic-metalenses with measured average efficiencies over 70% in the continuous band from the visible (640 nm) to the infrared (1200 nm). Results of the scalable platform are enabling for applications requiring broad bandwidth and high efficiency including energy harvesting, virtual reality and information processing devices, or medical imaging.

Suggested Citation

  • Abdoulaye Ndao & Liyi Hsu & Jeongho Ha & Jun-Hee Park & Connie Chang-Hasnain & Boubacar Kanté, 2020. "Octave bandwidth photonic fishnet-achromatic-metalens," Nature Communications, Nature, vol. 11(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17015-9
    DOI: 10.1038/s41467-020-17015-9
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