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Single-step manufacturing of hierarchical dielectric metalens in the visible

Author

Listed:
  • Gwanho Yoon

    (Pohang University of Science and Technology (POSTECH))

  • Kwan Kim

    (Korea University)

  • Daihong Huh

    (Korea University)

  • Heon Lee

    (Korea University)

  • Junsuk Rho

    (Pohang University of Science and Technology (POSTECH)
    Pohang University of Science and Technology (POSTECH)
    National Institute of Nanomaterials Technology (NINT))

Abstract

Metalenses have shown a number of promising functionalities that are comparable with conventional refractive lenses. However, current metalenses are still far from commercialization due to the formidable fabrication costs. Here, we demonstrate a low-cost dielectric metalens that works in the visible spectrum. The material of the metalens consists of a matrix-inclusion composite in which a hierarchy satisfies two requirements for the single-step fabrication; a high refractive index and a pattern-transfer capability. We use a UV-curable resin as a matrix to enable direct pattern replication by the composite, and titanium dioxide nanoparticles as inclusions to increase the refractive index of the composite. Therefore, such a dielectric metalens can be fabricated with a single step of UV nanoimprint lithography. An experimental demonstration of the nanoparticle composite-based metalens validates the feasibility of our approach and capability for future applications. Our method allows rapid replication of metalenses repeatedly and thereby provides an advance toward the use of metalenses on a commercial scale.

Suggested Citation

  • Gwanho Yoon & Kwan Kim & Daihong Huh & Heon Lee & Junsuk Rho, 2020. "Single-step manufacturing of hierarchical dielectric metalens in the visible," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16136-5
    DOI: 10.1038/s41467-020-16136-5
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    Citations

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    Cited by:

    1. Gyeongtae Kim & Yeseul Kim & Jooyeong Yun & Seong-Won Moon & Seokwoo Kim & Jaekyung Kim & Junkyeong Park & Trevon Badloe & Inki Kim & Junsuk Rho, 2022. "Metasurface-driven full-space structured light for three-dimensional imaging," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Dongwoo Lee & Beomseok Oh & Jeonghoon Park & Seong-Won Moon & Kilsoo Shin & Sea-Moon Kim & Junsuk Rho, 2024. "Wide field-of-hearing metalens for aberration-free sound capture," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Byoungsu Ko & Trevon Badloe & Younghwan Yang & Jeonghoon Park & Jaekyung Kim & Heonyeong Jeong & Chunghwan Jung & Junsuk Rho, 2022. "Tunable metasurfaces via the humidity responsive swelling of single-step imprinted polyvinyl alcohol nanostructures," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    4. Ruixuan Zheng & Ruhao Pan & Guangzhou Geng & Qiang Jiang & Shuo Du & Lingling Huang & Changzhi Gu & Junjie Li, 2022. "Active multiband varifocal metalenses based on orbital angular momentum division multiplexing," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    5. Minkyung Kim & Dasol Lee & Younghwan Yang & Yeseul Kim & Junsuk Rho, 2022. "Reaching the highest efficiency of spin Hall effect of light in the near-infrared using all-dielectric metasurfaces," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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