Do you hate the camera bumps on the back of your smartphone? A new optical component called metalens—which was named one of the top 10 future technologies by the World Economic Forum in 2019—may be the answer. Composed of a nanostructured array, this incredibly thin and lightweight optical device is currently the focus of much attention in the scientific community, even featured in a special issue of Nature Photonics. However, the production of metalenses requires highly precise techniques and can be expensive, posing a challenge for their scalable manufacturing.
World's first mass production of metalenses for visible wavelengths
