Well-formed disorder for versatile light technologies
We have managed to make an efficient material for broadband frequency doubling of light using microspheres made of disordered nanocrystals.
by
Sara Gasser

Red light is transformed into blue light by frequency doubling inside tiny spheres made of nanocrystals. (Visualisation: Jolanda Mueller / ETH Zurich)
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A freely accessible copy of the paper can be found external page here