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Dataset for Non-resonant optical control of a spinor polariton condensate

Dataset for Non-resonant optical control of a spinor polariton condensate
Dataset for Non-resonant optical control of a spinor polariton condensate
Dataset supports: Askitopoulos, Alexis et al (2016) Non-resonant optical control of a spinor polariton condensate. Physical Review B.We investigate the spin dynamics of polariton condensates spatially separated from and effectively confined by the pumping exciton reservoir. We obtain a strong correlation between the ellipticity of the non-resonant optical pump and the degree of circular polarisation (DCP) of the condensate at the onset of condensation. With increasing excitation density we observe a reversal of the DCP. The spin dynamics of the trapped condensate are described within the framework of the spinor complex Ginzburg-Landau equations in the Josephson regime, where the dynamics of the system are reduced to a current-driven Josephson junction. We show that the observed spin reversal is due to the interplay between an internal Josephson coupling effect and the detuning of the two projections of the spinor condensate via transition from a synchronised to a desynchronised regime. These results suggest that spinor polariton condensates can be controlled by tuning the non-resonant excitation density offering applications in electrically pumped polariton spin switches.
University of Southampton
Askitopoulos, Alexis
2365a936-bc12-47bc-94aa-e186b2bc0390
Kalinin, Kirill
48370656-7ae5-4680-8da4-c81949602efd
Liew, T.C.H.
9c0a81ce-432d-46cf-ac38-749cf0e5b1d2
CILIBRIZZI, PASQUALE
9734aced-5f2d-42a5-91fa-6f5be3bd2429
Hatzopoulos, Zacharias
6803e5ae-1159-45e0-ae5a-3d279acbc0f3
Savvidis, Pavlos G.
fef41541-a691-4df6-9ba6-2b86d3f85257
Berloff, Natalia G.
de2658f8-d78b-4552-ac62-33290762b797
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Askitopoulos, Alexis
2365a936-bc12-47bc-94aa-e186b2bc0390
Kalinin, Kirill
48370656-7ae5-4680-8da4-c81949602efd
Liew, T.C.H.
9c0a81ce-432d-46cf-ac38-749cf0e5b1d2
CILIBRIZZI, PASQUALE
9734aced-5f2d-42a5-91fa-6f5be3bd2429
Hatzopoulos, Zacharias
6803e5ae-1159-45e0-ae5a-3d279acbc0f3
Savvidis, Pavlos G.
fef41541-a691-4df6-9ba6-2b86d3f85257
Berloff, Natalia G.
de2658f8-d78b-4552-ac62-33290762b797
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf

Askitopoulos, Alexis, Kalinin, Kirill, Liew, T.C.H., CILIBRIZZI, PASQUALE, Hatzopoulos, Zacharias, Savvidis, Pavlos G., Berloff, Natalia G. and Lagoudakis, Pavlos (2016) Dataset for Non-resonant optical control of a spinor polariton condensate. University of Southampton doi:10.5258/SOTON/393795 [Dataset]

Record type: Dataset

Abstract

Dataset supports: Askitopoulos, Alexis et al (2016) Non-resonant optical control of a spinor polariton condensate. Physical Review B.We investigate the spin dynamics of polariton condensates spatially separated from and effectively confined by the pumping exciton reservoir. We obtain a strong correlation between the ellipticity of the non-resonant optical pump and the degree of circular polarisation (DCP) of the condensate at the onset of condensation. With increasing excitation density we observe a reversal of the DCP. The spin dynamics of the trapped condensate are described within the framework of the spinor complex Ginzburg-Landau equations in the Josephson regime, where the dynamics of the system are reduced to a current-driven Josephson junction. We show that the observed spin reversal is due to the interplay between an internal Josephson coupling effect and the detuning of the two projections of the spinor condensate via transition from a synchronised to a desynchronised regime. These results suggest that spinor polariton condensates can be controlled by tuning the non-resonant excitation density offering applications in electrically pumped polariton spin switches.

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Published date: 2016
Organisations: Quantum, Light & Matter Group
Projects:
Hybrid Polaritonics
Funded by: UNSPECIFIED (EP/M025330/1)
6 October 2015 to 5 October 2020

Identifiers

Local EPrints ID: 393795
URI: http://eprints.soton.ac.uk/id/eprint/393795
PURE UUID: 75320293-e922-420e-85f7-d01f7445e7b1

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Date deposited: 05 May 2016 10:15
Last modified: 29 Nov 2019 17:39

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Contributors

Creator: Alexis Askitopoulos
Creator: Kirill Kalinin
Creator: T.C.H. Liew
Creator: PASQUALE CILIBRIZZI
Creator: Zacharias Hatzopoulos
Creator: Pavlos G. Savvidis
Creator: Natalia G. Berloff

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