Extremely thin lightweight lenses take amazing images of the universe
A picture of the North America Nebula taken with the metalens
Courtesy of Joon-Suh Park
To take high-quality pictures of the celebs, astronomers often want thick, curved lenses to bend the sunshine exactly. However researchers have designed a flat lens that may take sharp pictures of the night time sky because of billions of nanostructures within the materials. It’s light-weight and resilient to wreck, so it may finally be included into satellites.
These so-called “metalenses” use metamaterials and are usually lots of of occasions thinner than standard lenses. One metalens can usually substitute a number of …
