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Polariton spin jets through optical control

Polariton spin jets through optical control
Polariton spin jets through optical control
We demonstrate spin-polarized jets in extended systems of ballistic exciton-polariton condensates in semiconductor microcavities using optical nonresonant excitation geometries. The structure of the spin jets is determined by the spatially patterned degree of circular polarization of the nonresonant excitation laser. The presence of the laser excitation, strong particle interactions, and spin relaxation leads to a tunable spin-dependent potential landscape for polaritons, with the appearance of intricate polarization patterns due to coherent matter-wave interference. Our work realizes polarization-structured coherent light sources in the absence of gauge fields.
1550-235X
Pickup, L.
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Töpfer, J.D.
e8fd5f61-4ab7-48c3-b83f-bc5d1cfc44e9
Sigurdsson, H.
c83e5b8a-f56f-4ab2-84d4-bca886026946
Lagoudakis, P. G.
ea50c228-f006-4edf-8459-60015d961bbf
Pickup, L.
7f1b36a6-8d33-4886-a980-bd55ca2cdb9f
Töpfer, J.D.
e8fd5f61-4ab7-48c3-b83f-bc5d1cfc44e9
Sigurdsson, H.
c83e5b8a-f56f-4ab2-84d4-bca886026946
Lagoudakis, P. G.
ea50c228-f006-4edf-8459-60015d961bbf

Pickup, L., Töpfer, J.D., Sigurdsson, H. and Lagoudakis, P. G. (2021) Polariton spin jets through optical control. Physical Review B, 103. (doi:10.1103/PhysRevB.103.155302).

Record type: Article

Abstract

We demonstrate spin-polarized jets in extended systems of ballistic exciton-polariton condensates in semiconductor microcavities using optical nonresonant excitation geometries. The structure of the spin jets is determined by the spatially patterned degree of circular polarization of the nonresonant excitation laser. The presence of the laser excitation, strong particle interactions, and spin relaxation leads to a tunable spin-dependent potential landscape for polaritons, with the appearance of intricate polarization patterns due to coherent matter-wave interference. Our work realizes polarization-structured coherent light sources in the absence of gauge fields.

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Polariton spin jets through optical control - Accepted Manuscript
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Accepted/In Press date: 2 March 2021
e-pub ahead of print date: 5 April 2021
Additional Information: arxiv is am

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Local EPrints ID: 449653
URI: http://eprints.soton.ac.uk/id/eprint/449653
ISSN: 1550-235X
PURE UUID: 24825290-2b1e-42ea-b31e-67f8987943a1

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Date deposited: 10 Jun 2021 16:31
Last modified: 10 Jun 2021 16:31

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Contributors

Author: L. Pickup
Author: J.D. Töpfer
Author: H. Sigurdsson

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