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Conferences > ODF > 2022 > OThA4A > OThA4A_01
  • Proceedings of the 2022 International Symposium on Imaging, Sensing, and Optical Memory (ISOM) and the 13th International Conference on Optics-photonics Design and Fabrication (ODF)
  • Technical Digest Series (Optica Publishing Group, 2022),
  • paper OThA4A_01

Dielectric metasurfaces for holography and focusing at visible wavelengths

Kentaro Iwami

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Abstract

Dielectric metasurfaces for holography and the varifocal lens are introduced. Sigle-crystal silicon nanopillars grown on a sapphire substrate were adopted as meta-atoms and patterned using high-throughput electron-beam lithography based on the character projection method. A multicolor metasurface holographic movie consisting of 20 frames was demonstrated. A rotational varifocal metalens shows a wide focal length tuning from negative to positive.

© 2022 IEEE

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