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Optically trapped room temperature polariton condensate in an organic semiconductor

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Date
23/11/2022
Author
Wei, Mengjie
Verstraelen, Wouter
Orfanakis, Konstantinos
Ruseckas, Arvydas
Liew, Timothy C. H.
Samuel, Ifor D. W.
Turnbull, Graham
Ohadi, Hamid
Funder
EPSRC
EPSRC
EPSRC
Scottish Funding Council
Grant ID
EP/M025330/1
EP/S014403/1
EP/L015110/1
N/A
Keywords
QC Physics
DAS
MCC
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Abstract
The strong nonlinearities of exciton-polariton condensates in lattices make them suitable candidates for neuromorphic computing and physical simulations of complex problems. So far, all room temperature polariton condensate lattices have been achieved by nanoimprinting microcavities, which by nature lacks the crucial tunability required for realistic reconfigurable simulators. Here, we report the observation of a quantised oscillating nonlinear quantum fluid in 1D and 2D potentials in an organic microcavity at room temperature, achieved by an on-the-fly fully tuneable optical approach. Remarkably, the condensate is delocalised from the excitation region by macroscopic distances, leading both to longer coherence and a threshold one order of magnitude lower than that with a conventional Gaussian excitation profile. We observe different mode selection behaviour compared to inorganic materials, which highlights the anomalous scaling of blueshift with pump intensity and the presence of sizeable energy-relaxation mechanisms. Our work is a major step towards a fully tuneable polariton simulator at room temperature.
Citation
Wei , M , Verstraelen , W , Orfanakis , K , Ruseckas , A , Liew , T C H , Samuel , I D W , Turnbull , G & Ohadi , H 2022 , ' Optically trapped room temperature polariton condensate in an organic semiconductor ' , Nature Communications , vol. 13 , no. 1 , 7191 . https://doi.org/10.1038/s41467-022-34440-0
Publication
Nature Communications
Status
Peer reviewed
DOI
https://doi.org/10.1038/s41467-022-34440-0
ISSN
2041-1723
Type
Journal article
Rights
Copyright © The Author(s) 2022. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Description
M.W., G.A.T., and I.D.W.S. acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC) programme grant Hybrid Polaritonics (EP/M025330/1), and from the Scottish Funding Council. W.V. and T.L. were supported by the Ministry of Education (Singapore) Tier 2 grant MOE2019-T2-004. H.O. acknowledges EPSRC through a grant (EP/S014403/1). K.O. acknowledges EPSRC for PhD studentship support through a grant (EP/L015110/1).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/26479

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