Vertical motional narrowing of exciton polaritons in GaN based multiple quantum wells
- 16 May 2000
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 76 (21) , 3049-3051
- https://doi.org/10.1063/1.126575
Abstract
Numerical simulation of time-resolved light reflection from GaN/AlGaN single and multiquantum wells (MQWs) revealed a pronounced vertical motional narrowing effect. This effect consists in reduction of the inhomogeneous broadening of the exciton peaks and increase of the decay time of the time-resolved reflection due to the averaging of the vertical disorder in the structure by extended exciton-polariton modes. The theory predicts pronounced oscillations in the time-resolved reflection of MQWs resulting from the interference of exciton-polariton modes in the structure.Keywords
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