Researchers build an ultrasound version of the laser

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An aluminum block acoustic cavity interacts with two electronic auto-oscillator circuits (not shown) via piezoelectric transducers electro-mechanical atoms to form a uaser.
An aluminum block [acoustic cavity] interacts with two electronic auto-oscillator circuits (not shown) via piezoelectric transducers [electro-mechanical ‘atoms’] to form a uaser.

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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