title: Spin Textures of Exciton-Polaritons in a Tunable Microcavity with Large TE-TM Splitting.
abstract: We report an extended family of spin textures of zero-dimensional exciton-polaritons spatially confined in tunable open microcavity structures. The transverse-electric-transverse-magnetic (TE-TM) splitting, which is enhanced in the open cavity structures, leads to polariton eigenstates carrying quantized spin vortices. Depending on the strength and anisotropy of the cavity confining potential and of the TE-TM induced splitting, which can be tuned via the excitonic or photonic fractions, the exciton-polariton emissions exhibit either spin-vortex-like patterns or linear polarization, in good agreement with theoretical modeling.
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: S
authors.initials: S
authors.lastname: Dufferwiel
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: Feng
authors.initials: F
authors.lastname: Li
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: E
authors.initials: E
authors.lastname: Cancellieri
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: L
authors.initials: L
authors.lastname: Giriunas
authors.affiliation: Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: A A P
authors.initials: AA
authors.lastname: Trichet
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: D M
authors.initials: DM
authors.lastname: Whittaker
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: P M
authors.initials: PM
authors.lastname: Walker
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.|IPCMS UMR 7504, CNRS and Université de Strasbourg, 67200 Strasbourg, France.
authors.forename: F
authors.initials: F
authors.lastname: Fras
authors.affiliation: EPSRC National Centre for III-V Technologies, University of Sheffield, Sheffield S1 3JD, United Kingdom.
authors.forename: E
authors.initials: E
authors.lastname: Clarke
authors.affiliation: Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom.
authors.forename: J M
authors.initials: JM
authors.lastname: Smith
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: M S
authors.initials: MS
authors.lastname: Skolnick
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom.
authors.forename: D N
authors.initials: DN
authors.lastname: Krizhanovskii