Half-skyrmion spin textures in polariton microcavities
Half-skyrmion spin textures in polariton microcavities
We study the polarization dynamics of a spatially expanding polariton condensate under nonresonant linearly polarized optical excitation. The spatially and temporally resolved polariton emission reveals the formation of non-trivial spin textures in the form of a quadruplet polarization pattern both in the linear and circular Stokes parameters, and an octuplet in the diagonal Stokes parameter. The continuous rotation of the polariton pseudospin vector through the condensate due to TE-TM splitting exhibits an ordered pattern of half-skyrmions associated with a half-integer topological number. A theoretical model based on a driven-dissipative Gross-Pitaevskii equation coupled with an exciton reservoir describes the dynamics of the nontrivial spin textures through the optical spin-Hall effect.
1-8
Cilibrizzi, Pasquale
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Sigurdsson, Helgi
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Liew, Timothy
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Ohadi, Hamid
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Askitopoulos, Alexis
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Brodbeck, Sebastian
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Schneider, Christian
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Shelykh, Ivan
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Hofling, Sven
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Ruostekoski, Janne
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Lagoudakis, Pavlos
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Cilibrizzi, Pasquale
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Sigurdsson, Helgi
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Liew, Timothy
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Ohadi, Hamid
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Askitopoulos, Alexis
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Brodbeck, Sebastian
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Schneider, Christian
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Shelykh, Ivan
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Hofling, Sven
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Ruostekoski, Janne
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Lagoudakis, Pavlos
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Cilibrizzi, Pasquale, Sigurdsson, Helgi, Liew, Timothy, Ohadi, Hamid, Askitopoulos, Alexis, Brodbeck, Sebastian, Schneider, Christian, Shelykh, Ivan, Hofling, Sven, Ruostekoski, Janne and Lagoudakis, Pavlos
(2016)
Half-skyrmion spin textures in polariton microcavities.
Physical Review B, .
(doi:10.1103/PhysRevB.94.045315).
Abstract
We study the polarization dynamics of a spatially expanding polariton condensate under nonresonant linearly polarized optical excitation. The spatially and temporally resolved polariton emission reveals the formation of non-trivial spin textures in the form of a quadruplet polarization pattern both in the linear and circular Stokes parameters, and an octuplet in the diagonal Stokes parameter. The continuous rotation of the polariton pseudospin vector through the condensate due to TE-TM splitting exhibits an ordered pattern of half-skyrmions associated with a half-integer topological number. A theoretical model based on a driven-dissipative Gross-Pitaevskii equation coupled with an exciton reservoir describes the dynamics of the nontrivial spin textures through the optical spin-Hall effect.
Text
Skyrmion_Spin_textures_PC3.pdf
- Accepted Manuscript
Text
Supplemetary_info_PC2.pdf
- Other
More information
Accepted/In Press date: 29 June 2016
e-pub ahead of print date: 25 July 2016
Organisations:
Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 398080
URI: http://eprints.soton.ac.uk/id/eprint/398080
ISSN: 1550-235X
PURE UUID: a200bc65-4c93-46e4-9c7b-46eafb7bb0cd
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Date deposited: 18 Jul 2016 08:34
Last modified: 15 Mar 2024 05:44
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Contributors
Author:
Pasquale Cilibrizzi
Author:
Helgi Sigurdsson
Author:
Timothy Liew
Author:
Hamid Ohadi
Author:
Alexis Askitopoulos
Author:
Sebastian Brodbeck
Author:
Christian Schneider
Author:
Ivan Shelykh
Author:
Sven Hofling
Author:
Pavlos Lagoudakis
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