Science / Nanophysics

Hot nanoparticles produce giant and explosive bubbles

Posted On: Jul 12, 2018   |   Posted By: Phys.org

When gold nano particles in water are illuminated by a laser, they get very hot: well above the boiling point of water. The formation of vapour bubbles caused by this, is well-known. New experiments, however, using a very high speed camera, now show that before this, a bubble is formed that is much larger and, subsequently, explodes violently. For energy conversion of the particles to the liquid they are in, this discovery of early phase dynamics is very important. Researchers of the University of Twente and the University of Utrecht in The Netherlands now publish these new results in the Proceedings of the National Academy of Sciences .

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