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Whispering-gallery exciton polaritons in submicron spheres.

By C.E. Platts, M.A. Kaliteevski, S. Brand, R.A. Abram, I.V. Iorsh and A.V. Kavokin

Abstract

We show that a semiconductor sphere with a radius comparable with the\ud wavelength of light at the exciton resonance frequency can behave as a\ud high-quality three-dimensional microcavity or "polariton dot." We\ud obtain numerical results for gallium arsenide submicron spheres and\ud demonstrate that, in contrast to a larger sphere or planar microcavity,\ud they can simultaneously possess both large quality factor and high\ud finesse. In the strong-coupling regime the Rabi splitting approaches\ud the bulk polariton splitting.</p>

Publisher: American Physical Society
Year: 2009
DOI identifier: 10.1103/PhysRevB.79.245322
OAI identifier: oai:dro.dur.ac.uk.OAI2:8050
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