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Room temperature polariton lasers based on GaN microcavities

Malpuech, G., Di Carlo, A., Kavokin, A., Baumberg, J.J., Zamfirescu, M. and Lugli, P. (2002) Room temperature polariton lasers based on GaN microcavities Applied Physics Letters, 81, (3), pp. 412-414. (doi:10.1063/1.1494126).

Record type: Article


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.

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Published date: 15 July 2002


Local EPrints ID: 256685
ISSN: 0003-6951
PURE UUID: 53ab29c8-53e9-428f-b6f6-14ea3a5af62b

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Date deposited: 18 Jul 2002
Last modified: 18 Jul 2017 09:44

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Author: G. Malpuech
Author: A. Di Carlo
Author: A. Kavokin
Author: J.J. Baumberg
Author: M. Zamfirescu
Author: P. Lugli

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