Abstract
We report ultralow threshold polariton lasing from a single GaN nanowire strongly coupled to a large-area dielectric microcavity. The threshold carrier density is 3 orders of magnitude lower than that of photon lasing observed in the same device, and 2 orders of magnitude lower than any existing room-temperature polariton devices. Spectral, polarization, and coherence properties of the emission were measured to confirm polariton lasing.
- Received 20 April 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.066405
© 2011 American Physical Society
Synopsis
A light-matter laser squeezed into a nanowire
Published 4 August 2011
In nanowire form, semiconductor lasers that rely on the coherent scattering of polaritons produce light with less energy.
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