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99 sats \ 0 replies \ @k00b 22 Oct 2023 \ on: Laser Beams Deflected Off of Nothing but Air for First Time Ever tech
I hadn't heard of diffraction grating but it sounds like they can steer light by having it travel through layers of changing air density resulting in a kind of air lens. That's rad.
These applications aren't really relatable but I imagine lensless lenses have a bunch of applications.