Mid-infrared large-aperture metalens design verification and double-layer micro-optical system optimization

Authors:
  • WHWeilin He
    Weilin He
  • LXLei Xin
    Lei Xin
  • ZYZhongming Yang
    Zhongming Yang
  • ZLZhaojun Liu
    Zhaojun Liu
Publisher website
Google Scholar
Abstract
In this article, we explored the design and simulation techniques of large-aperture metalenses, and the optimization design methods of metalenses. For verification and experimental demonstration, a centimeter-scale aperture single-layer metalens and a field of view optimized metalens doublet,composed of subwavelength-spaced Si nanopillars with an operating wavelength of 3.77 µm were designed and manufactured. Finally, the focusing performance of the two under narrow-band laser irradiation was characterized, and an imaging demonstration of the metalens doublet was performed under an optical bandwidth of 250 nm (3500-3750 nm). We envision that the calculation, design, sample manufacturing and demonstration research on large-aperture metalens presented here will provide an important reference for the design and verification of large-aperture metasurface lenses or special metasurface devices in the future, such as large-aperture compact multifunctional metalens optical equipment for low-load special application systems like airborne, spaceborne, missile, satellite and deep sea.
Funding Information
  • Taishan Scholar Foundation of Shandong Province
  • Key Technology Research and Development Program of Shandong Province (2023JMRH0105)
  • National Natural Science Foundation of China (62075232, 62175131, 62305191, 92163134)

This publication has 62 references indexed in Scilit: