Researchers build an ultrasound version of the laser

Researchers at the University of Illinois at Urbana-Champaign and at the University of Missouri at Rolla have built an ultrasound analogue of the laser.

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<p><a href="http://www.physorg.com/news68997984.html">Researchers build an ultrasound version of the laser</a></p> <p>Researchers at the University of Illinois at Urbana-Champaign and at the University of Missouri at Rolla have built an ultrasound analogue of the laser.</p>