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Department of Physics

Staff profile

Publication details for Dr Stuart Brand

Platts, CE, Kaliteevski, MA, Brand, S, Abram, RA, Iorsh, IV & Kavokin, AV (2009). Whispering-gallery exciton polaritons in submicron spheres. Physical Review B 79(24): 245322.

Author(s) from Durham

Abstract

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

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