metalens
A metalens is a type of lens made from metamaterials, which are artificial materials engineered to have properties not found in nature. Unlike traditional lenses, which rely on refraction to focus light, metalenses use diffraction to achieve the same effect. This is made possible by the unique properties of metamaterials, which can manipulate light in ways that are not possible with conventional materials.
Metalenses were first proposed in 2016 by a team of researchers from the University of California, Berkeley.
One of the key advantages of metalenses is their ability to be fabricated using standard semiconductor manufacturing
However, metalenses also have some limitations. For example, they are currently only able to focus light in
Despite these challenges, metalenses represent an exciting new direction in optics research. As our understanding of