Aug 3, 2022

MIT scientists create color-shifting films inspired by 19th-century holography

Posted by in categories: materials, physics

Potential applications include pressure-monitoring bandages, shade-shifting fabrics.

The bright iridescent colors in butterfly wings or beetle shells don’t come from any pigment molecules but from how the wings are structured—a naturally occurring example of what physicists call photonic crystals. Scientists can make their own structural colored materials in the lab, but it can be challenging to scale up the process for commercial applications without sacrificing optical precision.

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