Room temperature polariton lasing vs photon lasing in a ZnO-based hybrid microcavity

Tien-Chang Lu, Ying-Yu Lai, Yu-Pin Lan, Si-Wei Huang, Jun-Rong Chen, Yung-Chi Wu, Wen-Feng Hsieh, Hui Deng
2012 Optics Express  
We report on the room temperature polariton lasing and photon lasing in a ZnO-based hybrid microcavity under optical pumping. A series of experimental studies of the polariton lasing (exciton-photon detunings of δ = 119meV) in the strong-coupling regime are discussed and compared to a photon lasing (δ = 45meV) in the weak-coupling regime obtained in the same structure. The measured threshold power density (31.8kW/cm 2 ) of polariton lasing is one order of magnitude lower than that of the
more » ... an that of the photon lasing (318.2kW/cm 2 ). In addition, the comparison between polariton lasing and photon lasing is done in terms of the linewidth broadening, blue-shift of the emission peak, and polarization.
doi:10.1364/oe.20.005530 pmid:22418359 fatcat:6673jg5h4nexjd2yedqca22ury