Printed lasers can make your wallpaper ‘smart’

Scientists have printed lasers using standard inkjet printers — a move that may lead to a much easier and cheaper way to make future laser devices.

A University of Cambridge team has used liquid crystals in place of ink to print tiny dots on a surface covered with a special coating.

Once the coating dries, the dots become lasers, the researchers wrote in the journal Soft Matter — via

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