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Optical diffraction patterns made with a MOPA laser engraving machine [video]

hnthrowawayacct

This guy always has an unreal amount of engineering lift for hobby videos. A treat to watch every time.

JKCalhoun

Yeah, a YouTube treasure. For anyone new to his channel, you have a back log of amazing experiments to binge on.

I believe he works at Alphabet (tangent?)—somewhere in the Bay Area.

mikkupikku

Pity it won't work for chocolate holograms.

alganet

Why not?