Polariton spin whirls

P. Cilibrizzi, H. Sigurdsson, T. C.H. Liew, H. Ohadi, S. Wilkinson, A. Askitopoulos, I. A. Shelykh, P. G. Lagoudakis

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

We report on the observation of spin whirls in a radially expanding polariton condensate formed under nonresonant optical excitation. Real space imaging of polarization- and time-resolved photoluminescence reveals a spiralling polarization pattern in the plane of the microcavity. Simulations of the spatiotemporal dynamics of a spinor condensate reveal the crucial role of polariton interactions with a spinor exciton reservoir. Harnessing spin-dependent interactions between the exciton reservoir and polariton condensates allows for the manipulation of spin currents and the realization of dynamic collective spin effects in solid-state systems.

Original languageEnglish
Article number155308
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number15
DOIs
Publication statusPublished - 9 Oct 2015
Externally publishedYes

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