Long wavelength infrared metalens fabricated by photolithography

  • Yun Peng Li
  • , Jia Cheng Luo
  • , Ruo Nan Ji
  • , Mao Bin Xie
  • , Wen Nan Cui
  • , Shao Wei Wang
  • , Feng Liu*
  • , Wei Lu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Metasurfaces in the long wave infrared(LWIR)spectrum hold great potential for applications in thermal imaging,atmospheric remote sensing,and target identification,among others. In this study,we designed and experimentally demonstrated a 4 mm size,all-silicon metasurface metalens with large depth of focus operational across a broadband range from 9 μm to 11. 5 μm. The experimental results confirm effective focusing and imaging capabilities of the metalens in LWIR region,thus paving the way for practical LWIR applications of metalens technology.

Translated title of the contribution光刻法制备的长波红外超透镜
Original languageEnglish
Pages (from-to)603-608
Number of pages6
JournalHongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves
Volume43
Issue number5
DOIs
StatePublished - Oct 2024
Externally publishedYes

Keywords

  • broadband operation
  • long wave infrared
  • passive imaging

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