Unstable and stable regimes of polariton condensation
| Autor: | Iacopo Carusotto, Michiel Wouters, Alberto Amo, Daniele De Bernardis, Isabelle Sagnes, F. Baboux, Carmen Gomez, Jacqueline Bloch, V. N. Gladilin, L. Le Gratiet, V. Goblot, Elisabeth Galopin, Aristide Lemaître |
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| Přispěvatelé: | Institut des Nanosciences de Paris (INSP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et Nanotechnologies (C2N (UMR_9001)), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD [Nouvelle-Calédonie]), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), INO-CNR BEC Center and Dipartimento di Fisica, Università degli Studi di Trento (UNITN), Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Theory of Quantum systems and Complex systems (TQC), University of Antwerp (UA), ANR-16-CE30-0021,QFL,Fluides Quantiques de Lumière(2016) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Quantum fluid
Photon FOS: Physical sciences Physics::Optics 02 engineering and technology 01 natural sciences Instability Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Polariton Rogue wave 010306 general physics ComputingMilieux_MISCELLANEOUS Condensed Matter::Quantum Gases Physics Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Condensed Matter::Other 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Modulational instability Quantum Gases (cond-mat.quant-gas) Dissipative system [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic Condensed Matter - Quantum Gases 0210 nano-technology Optics (physics.optics) Physics - Optics Coherence (physics) |
| Zdroj: | Optica Optica, Optical Society of America-OSA Publishing, 2018, 5 (10), pp.1163. ⟨10.1364/OPTICA.5.001163⟩ Optica, 2018, 5 (10), pp.1163. ⟨10.1364/OPTICA.5.001163⟩ |
| ISSN: | 2334-2536 |
| DOI: | 10.1364/OPTICA.5.001163⟩ |
| Popis: | Modulational instabilities play a key role in a wide range of nonlinear optical phenomena, leading e.g. to the formation of spatial and temporal solitons, rogue waves and chaotic dynamics. Here we experimentally demonstrate the existence of a modulational instability in condensates of cavity polaritons, arising from the strong coupling of cavity photons with quantum well excitons. For this purpose we investigate the spatiotemporal coherence properties of polariton condensates in GaAs-based microcavities under continuous-wave pumping. The chaotic behavior of the instability results in a strongly reduced spatial and temporal coherence and a significantly inhomogeneous density. Additionally we show how the instability can be tamed by introducing a periodic potential so that condensation occurs into negative mass states, leading to largely improved coherence and homogeneity. These results pave the way to the exploration of long-range order in dissipative quantum fluids of light within a controlled platform. 7 pages, 5 figures |
| Databáze: | OpenAIRE |
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