Lasers from sound.

• Autores: JR Minkel
• Localización: Scientific American, ISSN 0036-8733, Vol. 295, Nº. 2, 2006, págs. 32-32
• Idioma: inglés
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• Resumen

  • This article discusses the development of technology that demonstrates laser energy without the use of light. One device consists of layers of gallium arsenide and aluminum arsenide that emit and partially trap sound vibrations. A voltage then creates a burst of photons, which reverberate and multiply, and the amplified sound exits on one end of the device. This creates what has been dubbed a "saser" or sound laser.