Scalable high-efficiency metasurface-refractive retro-reflector
Abstract A retroreflector, an optical device that reflects light back along its incident path, plays a crucial role in optics. However, achieving high-efficiency, large-area retroreflection in planar optical systems remains a persistent challenge, constrained by the bulky nature of traditional desig...
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-05-01
|
| Series: | PhotoniX |
| Online Access: | https://doi.org/10.1186/s43074-025-00172-9 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Abstract A retroreflector, an optical device that reflects light back along its incident path, plays a crucial role in optics. However, achieving high-efficiency, large-area retroreflection in planar optical systems remains a persistent challenge, constrained by the bulky nature of traditional designs like corner cube mirrors and cat’s eye retroreflectors. Here, we demonstrate a scalable metasurface-refractive retroreflector (MRR) that combines a refractive lens and meta-lens, achieving polarization-independent retroreflection with a half power field of view (FOV) of 70° and 88.5% efficiency at normal incident. The scalability of the MRR enables straightforward planar expansion into arrays, facilitating large-area effective retroreflection. Additionally, a moving object equipped with MRR is observed in a laser tracking experiment. The metasurface-refractive architecture evidently improves the functionality of the retroreflector, and paves a new path in the field of smart optical device design. |
|---|---|
| ISSN: | 2662-1991 |