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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

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/cm2) of polariton lasing is one order of magnitude lower than 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.

Original languageEnglish
Pages (from-to)5530-5537
Number of pages8
JournalOptics Express
Volume20
Issue number5
DOIs
StatePublished - 27 Feb 2012

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