Room-temperature polariton lasers based on GaN microcavities
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- 15 July 2002
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (3) , 412-414
- https://doi.org/10.1063/1.1494126
Abstract
The critical temperature for Bose condensation of exciton polaritons in an AlGaN microcavity containing 9 GaN quantum wells is calculated to be T=460 K . We have modeled the kinetics of polaritons in such a microcavity device using the two-dimensional Boltzmann equation. Room-temperature lasing is found with a threshold as small as 100 mW. The kinetic blocking of polariton relaxation that prevents formation of the Bose-condensed phase of polaritons at low temperatures disappears at high temperatures, especially in n-doped samples. Thus, GaN microcavities are excellent candidates for realization of room-temperature polariton lasers.Keywords
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