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 language | English |
| Pages (from-to) | 603-608 |
| Number of pages | 6 |
| Journal | Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves |
| Volume | 43 |
| Issue number | 5 |
| DOIs | |
| State | Published - Oct 2024 |
| Externally published | Yes |
Keywords
- broadband operation
- long wave infrared
- passive imaging