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Composite functional metasurfaces for multispectral achromatic optics

Author

Listed:
  • Ori Avayu

    (Fleischman Faculty of Engineering, Tel-Aviv University)

  • Euclides Almeida

    (Weizmann Institute of Science)

  • Yehiam Prior

    (Weizmann Institute of Science)

  • Tal Ellenbogen

    (Fleischman Faculty of Engineering, Tel-Aviv University
    Tel-Aviv University Center for Light-Matter-Interaction)

Abstract

Nanostructured metasurfaces offer unique capabilities for subwavelength control of optical waves. Based on this potential, a large number of metasurfaces have been proposed recently as alternatives to standard optical elements. In most cases, however, these elements suffer from large chromatic aberrations, thus limiting their usefulness for multiwavelength or broadband applications. Here, in order to alleviate the chromatic aberrations of individual diffractive elements, we introduce dense vertical stacking of independent metasurfaces, where each layer is made from a different material, and is optimally designed for a different spectral band. Using this approach, we demonstrate a triply red, green and blue achromatic metalens in the visible range. We further demonstrate functional beam shaping by a self-aligned integrated element for stimulated emission depletion microscopy and a lens that provides anomalous dispersive focusing. These demonstrations lead the way to the realization of ultra-thin superachromatic optical elements showing multiple functionalities—all in a single nanostructured ultra-thin element.

Suggested Citation

  • Ori Avayu & Euclides Almeida & Yehiam Prior & Tal Ellenbogen, 2017. "Composite functional metasurfaces for multispectral achromatic optics," Nature Communications, Nature, vol. 8(1), pages 1-7, April.
  • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14992
    DOI: 10.1038/ncomms14992
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    Cited by:

    1. Yueqiang Hu & Yuting Jiang & Yi Zhang & Xing Yang & Xiangnian Ou & Ling Li & Xianghong Kong & Xingsi Liu & Cheng-Wei Qiu & Huigao Duan, 2023. "Asymptotic dispersion engineering for ultra-broadband meta-optics," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Ethan Tseng & Shane Colburn & James Whitehead & Luocheng Huang & Seung-Hwan Baek & Arka Majumdar & Felix Heide, 2021. "Neural nano-optics for high-quality thin lens imaging," Nature Communications, Nature, vol. 12(1), pages 1-7, December.

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