Rewritable Nanocrystls (IMAGE)

Columbia University School of Engineering and Applied Science

Rewritable Nanocrystls

Caption

Microscale optical rewritable patterning enabled by stable, photoswitchable avalanching nanoparticles. Here, the pattern is erased and rewritten using only infrared light, changing between all bright, all off, the Columbia Crown, all off, and a smiley face.

Credit

Changhwan Lee/Columbia Engineering

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