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

Opt Express. 2012 Feb 27;20(5):5530-7. doi: 10.1364/OE.20.005530.

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 = -119 meV) in the strong-coupling regime are discussed and compared to a photon lasing (δ = -45 meV) in the weak-coupling regime obtained in the same structure. The measured threshold power density (31.8 kW/cm2) of polariton lasing is one order of magnitude lower than that of the photon lasing (318.2 kW/cm2). 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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amplifiers, Electronic*
  • Equipment Design
  • Equipment Failure Analysis
  • Lasers*
  • Photons
  • Temperature
  • Zinc Oxide / chemistry*

Substances

  • Zinc Oxide