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It’s not. The mechanism by which it acts is quite different. The lens is a metasurface lens, which has small structures that cause the phases of light to constructively or destructively interfere. The result is caused by the fact that, by carefully picking how light interferes, one can form an image on the other side of the lens. This differs from a Fresnel lens (or other classical lenses), which essentially form images by having rays of light which emerge from one spot, on one side of the lens, converge to another spot on the other side.

(In particular, wave theory is not needed to predict the behavior of classical lenses.)




> [...] which has small structures that cause the phases of light to constructively or destructively interfere

This is slightly unclear. I meant more specifically:

[...] which has small structures that change the phase of the light, which, in turn, causes it to constructively or destructively interfere [...]


Well, a fresnel lense (or any lense) also just changes the phase of which in turn causes it...

But i will read the paper later.


Yeah, I should have said "subwavelength" structures, since I really didn't specify what "small" meant, but thought it was getting too technical.




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