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Half-skyrmion spin textures in polariton microcavities

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.
1550-235X
1-8
Cilibrizzi, Pasquale
87c472fd-4228-45dc-ac37-79209155c190
Sigurdsson, Helgi
1d5d2ccc-a612-4f11-9e1f-1d36d3f0d71c
Liew, Timothy
fa08dd3a-90b1-4a23-b80d-0958c695d3ca
Ohadi, Hamid
08639b57-7cae-498a-afd2-dbfd5d738cd2
Askitopoulos, Alexis
7ccee4f4-5ea2-408f-beb3-3ff5b281f4e4
Brodbeck, Sebastian
0e99ccef-2452-4d9e-8170-befdad561d44
Schneider, Christian
a0763548-1c6b-4a22-9c47-0c92e77b58a7
Shelykh, Ivan
36ca7136-8728-4eb1-9e1c-2fbb0e7b0304
Hofling, Sven
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Ruostekoski, Janne
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Cilibrizzi, Pasquale
87c472fd-4228-45dc-ac37-79209155c190
Sigurdsson, Helgi
1d5d2ccc-a612-4f11-9e1f-1d36d3f0d71c
Liew, Timothy
fa08dd3a-90b1-4a23-b80d-0958c695d3ca
Ohadi, Hamid
08639b57-7cae-498a-afd2-dbfd5d738cd2
Askitopoulos, Alexis
7ccee4f4-5ea2-408f-beb3-3ff5b281f4e4
Brodbeck, Sebastian
0e99ccef-2452-4d9e-8170-befdad561d44
Schneider, Christian
a0763548-1c6b-4a22-9c47-0c92e77b58a7
Shelykh, Ivan
36ca7136-8728-4eb1-9e1c-2fbb0e7b0304
Hofling, Sven
3a92b8ec-7fae-40d4-b39a-b48667ecf809
Ruostekoski, Janne
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
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, 1-8. (doi:10.1103/PhysRevB.94.045315).

Record type: Article

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.

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Skyrmion_Spin_textures_PC3.pdf - Accepted Manuscript
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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

Catalogue record

Date deposited: 18 Jul 2016 08:34
Last modified: 17 Dec 2019 06:43

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