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GaN Microcavity Laser: Polariton cavity lases at room temperature

Researchers at the University of Southampton and the Institute of Quantum Electronics and Photonics have reported room-temperature operation of a microcavity gallium nitride (GaN) polariton laser with an input-power threshold of only 1 mW, which, at an absorbed energy density of 29 mJ/cm2, is an order of magnitude lower than the best performance obtained to date with optically pumped GaN quantum-well vertical-cavity surface-emitting lasers.

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Posted by Ounsi El Daïf on Friday 31 August 2007 at 14:20