• Bubs@lemm.ee
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    2 days ago

    TL;DR from Wikipedia: In photon upconversion, two or more incident photons of relatively low energy are absorbed and converted into one emitted photon with higher energy.

    Basically photons are combined into a photon that is nearer in wavelength to visible light.

    • Psythik@lemm.ee
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      2 days ago

      Aww that’s disappointing, but I’m not surprised. Otherwise we’d be using this tech to help colorblind people tell the difference between red and green.