3 ms·
That's incorrect, metalenses are not diffractive lenses. They continuisly change the local refractive index through subwavelength structures. There's a brief in
by cycomanic 6y ago
That's incorrect, metalenses are not diffractive lenses. They continuisly change the local refractive index through subwavelength structures. There's a brief introduction and discussion about differences with diffractive lenses here: https://www.nature.com/articles/s41467-020-15972-9 https://www.nature.com/articles/s41467-020-15972-9
- amelius 6y agoWhy is "meta" in the name?
- jasonwatkinspdx 6y agoIt's a general category of assemblies / structures that mimic a material with unusual or even impossible properties: https://en.wikipedia.org/wiki/Metamaterial https://en.wikipedia.org/wiki/Metamaterial