Enhanced coupling between ballistic exciton-polariton condensates through tailored pumping
Enhanced coupling between ballistic exciton-polariton condensates through tailored pumping
We propose a method to enhance the spatial coupling between ballistic exciton-polariton condensates in a semiconductor microcavity based on available spatial light modulator technologies. Our method, verified by numerically solving a generalized Gross-Pitaevskii model, exploits the strong nonequilibrium nature of exciton-polariton condensation driven by localized nonresonant optical excitation. Tailoring the excitation beam profile from a Gaussian into a polygonal shape results in refracted and focused radial streams of outflowing polaritons from the excited condensate which can be directed towards nearest neighbors. Our method can be used to lower the threshold power needed to achieve polariton condensation and increase spatial coherence in extended systems, paving the way towards creating extremely large-scale quantum fluids of light.
Microcavity, Polariton, Polariton Condensate
Wang, Yuan
6e0aca42-6096-47c8-b11a-a8072348fac5
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Sigurdsson, Helgi
c6380293-fe97-4fd0-a819-cf35721d4e5d
19 December 2022
Wang, Yuan
6e0aca42-6096-47c8-b11a-a8072348fac5
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Sigurdsson, Helgi
c6380293-fe97-4fd0-a819-cf35721d4e5d
Wang, Yuan, Lagoudakis, Pavlos and Sigurdsson, Helgi
(2022)
Enhanced coupling between ballistic exciton-polariton condensates through tailored pumping.
Physical Review B, 106 (24), [245304].
(doi:10.1103/PhysRevB.106.245304).
Abstract
We propose a method to enhance the spatial coupling between ballistic exciton-polariton condensates in a semiconductor microcavity based on available spatial light modulator technologies. Our method, verified by numerically solving a generalized Gross-Pitaevskii model, exploits the strong nonequilibrium nature of exciton-polariton condensation driven by localized nonresonant optical excitation. Tailoring the excitation beam profile from a Gaussian into a polygonal shape results in refracted and focused radial streams of outflowing polaritons from the excited condensate which can be directed towards nearest neighbors. Our method can be used to lower the threshold power needed to achieve polariton condensation and increase spatial coherence in extended systems, paving the way towards creating extremely large-scale quantum fluids of light.
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accepted_manuscript
- Accepted Manuscript
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Enhanced coupling between ballistic exciton-polariton condensates through tailored pumping
- Accepted Manuscript
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Accepted/In Press date: 6 December 2022
Published date: 19 December 2022
Additional Information:
Funding Information:
The authors acknowledge the support of the European Union's Horizon 2020 program, through a FET Open research and innovation action under the Grant Agreements No. 899141 (PoLLoC) and No. 964770 (TopoLight). H.S. acknowledges the Icelandic Research Fund (Rannis), Grant No. 217631-051. Y.W.'s studentship was financed by the Royal Society, Grant No. RGF\EA\180062.
arXiv:2208.13596V2
Keywords:
Microcavity, Polariton, Polariton Condensate
Identifiers
Local EPrints ID: 473389
URI: http://eprints.soton.ac.uk/id/eprint/473389
ISSN: 2469-9969
PURE UUID: 203a3828-3dcc-4641-8110-78a5e4b53e88
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Date deposited: 17 Jan 2023 17:38
Last modified: 16 Mar 2024 23:36
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Author:
Pavlos Lagoudakis
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