Researchers revive the pinhole camera for next-gen infrared imaging (phys.org)
from cm0002@piefed.world to science@mander.xyz on 12 Sep 02:52
https://piefed.world/post/462206

#science

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xxce2AAb@feddit.dk on 12 Sep 06:11 next collapse

Okay, that’s very cool work.

Kowowow@lemmy.ca on 12 Sep 07:05 next collapse

Too bad you need to keep blasting the crystal with a laser to make this work

Hamartiogonic@sopuli.xyz on 12 Sep 08:45 collapse

Is that a problem though? As long as the new camera is better than the old one, it should be fine.

Kowowow@lemmy.ca on 12 Sep 16:16 collapse

I was hoping it was more of a process done to the crystal so it could make cheap and better heat cameras

Hamartiogonic@sopuli.xyz on 12 Sep 17:39 collapse

Yeah well, passive components are nice, but occasionally you just need to spend some energy to keep the components doing its thing.

CookieOfFortune@lemmy.world on 12 Sep 18:44 collapse

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.