Researchers have developed a way to dynamically switch the surface of liquid metal between reflective and scattering states. This technology could one day be used to create electrically controllable mirrors or illumination devices.
Liquid metals combine the electrical, thermal and optical properties of metals with the fluidity of a liquid. The new approach uses an electrically driven chemical reaction to create switchable reflective surfaces on a liquid metal.
No optical coatings nor polishing steps, which are typically required to make reflective optical components, are necessary to make the liquid metal highly reflective. [Read more…] about Researchers create switchable mirrors from liquid metal