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Title: Optically trapped room temperature polariton condensate in an organic semiconductor
Authors: Wei, Mengjie
Verstraelen, Wouter
Orfanakis, Konstantinos
Ruseckas, Arvydas
Liew, Timothy Chi Hin
Samuel, Ifor D. W.
Turnbull, Graham A.
Ohadi, Hamid
Keywords: Physics
Issue Date: 2022
Source: Wei, M., Verstraelen, W., Orfanakis, K., Ruseckas, A., Liew, T. C. H., Samuel, I. D. W., Turnbull, G. A. & Ohadi, H. (2022). Optically trapped room temperature polariton condensate in an organic semiconductor. Nature Communications, 13, 7191-.
Project: MOE2019-T2-004
Journal: Nature Communications 
Abstract: The strong nonlinearities of exciton-polariton condensates in lattices make them suitable candidates for neuromorphic computing and physical simula- tions 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 dis- tances, leading both to longer coherence and a threshold one order of mag- nitude 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.
ISSN: 2041-1723
DOI: 10.1038/s41467-022-34440-0
DOI (Related Dataset): 10.21979/N9/SJ20ZW
Schools: School of Physical and Mathematical Sciences 
Rights: © 2022 The Author(s). 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 licenses/by/4.0/.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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