Hmm, so if I understand the paper (which I might not), the lens is created by one laser beam, and then light from the sample causes a two photon effect in the lens area. Since two photon effects continue propagation, it’s in effect a pinhole which can be used for imaging. This seems like quite an elegant experiment.
Researchers revive the pinhole camera for next-gen infrared imaging
Submitted 2 days ago by cm0002@piefed.world to science@mander.xyz
https://phys.org/news/2025-09-revive-pinhole-camera-gen-infrared.html
Comments
CookieOfFortune@lemmy.world 1 day ago
xxce2AAb@feddit.dk 2 days ago
Okay, that’s very cool work.
Kowowow@lemmy.ca 1 day ago
Too bad you need to keep blasting the crystal with a laser to make this work
Hamartiogonic@sopuli.xyz 1 day ago
Is that a problem though? As long as the new camera is better than the old one, it should be fine.
Kowowow@lemmy.ca 1 day ago
I was hoping it was more of a process done to the crystal so it could make cheap and better heat cameras