Tiny new lenses, smaller than a hair, could transform phone and drone cameras
9 hours ago
- #optics
- #metalens
- #nanotechnology
- Scientists developed a multi-layered metalens design for portable optics in devices like phones and drones.
- The design uses stacked metamaterial layers to focus multiple wavelengths of light, overcoming previous limitations.
- An algorithm-driven approach created intricate nanostructures (e.g., clovers, propellers) for improved performance and scalability.
- The metalenses are polarization-insensitive and compatible with semiconductor nanofabrication platforms.
- The multi-layer approach allows focusing up to five wavelengths, ideal for drones and satellites.
- Metalenses are much thinner than conventional lenses, enabling impossibly short focal lengths.