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Related papers: Exciton-Polariton Flows in Cross-Dimensional Junct…

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We theoretically analyze the synchronized and desynchronized phases of coupled non-equilibrium polariton condensates within mean field theory. An analytical condition for the existence of a synchronized phase is derived for two coupled…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Michiel Wouters

Random lasing is an intriguing phenomenon occurring in disordered structures with optical gain. In such lasers, the scattering of light provides the necessary feedback for lasing action. Because of the light scattering, the random lasing…

We explore formation and dynamics of nonequilibrium bosonic exciton-polariton condensates in annular optically induced traps. For the vicinity of condensation pumping threshold, we develop the two-mode model, accounting for counter-rotating…

Quantum Gases · Physics 2024-02-08 I. Chestnov , E. Cherotchenko , A. Nalitov

Recently, exciton-polaritons in a semiconductor microcavity were found to condense into a coherent ground state much like a Bose-Einstein condensate and a superfluid. They have become a unique testbed for generating and manipulating quantum…

Monolayers of transition metal dichalcogenides (TMDCs), known for their strong excitonic states with high binding energies in the visible spectrum at room temperature, offer great potential for polariton-driven devices. While polariton…

We investigate the optical orientation, polarization pinning, and depolarization of optically confined semiconductor exciton-polariton condensates. We perform a complete mapping of the condensate polarization as a function of incident…

Mesoscale and Nanoscale Physics · Physics 2020-09-23 Ivan Gnusov , Helgi Sigurdsson , Stepan Baryshev , Timur Ermatov , Alexis Askitopoulos , Pavlos G. Lagoudakis

We present a theoretical scheme for multistability in planar microcavity exciton-polariton condensates under nonresonant driving. Using an excitation profile resulting in a spatially patterned condensate, we observe organized phase locking…

Pattern Formation and Solitons · Physics 2018-02-21 E. Z. Tan , H. Sigurdsson , T. C. H. Liew

Self-rotation occurs in an exciton-polariton condensate in a two-dimensional semiconductor microcavity pumped by a nonresonant Gaussian laser beam. A wave packet of the condensate spontaneously rotates around the center of the pumped region…

Mesoscale and Nanoscale Physics · Physics 2016-10-26 Hiroki Saito , Rina Kanamoto

We study theoretically the transport of linearly polarized exciton-polaritons in a quasi one-dimensional microcavity channel separating two polariton condensates generated by optical pumping. The direction and value of mass and spin…

Mesoscale and Nanoscale Physics · Physics 2013-07-25 M. Yu. Petrov , A. V. Kavokin

We have experimentally observed an eddy current of exciton polaritons arising in a cylindrical GaAs/AlGaAs pillar microcavity under the nonresonant optical pumping. The polariton current manifests itself in a Mach-Zehnder interferometry…

Mesoscale and Nanoscale Physics · Physics 2018-05-30 V. A. Lukoshkin , V. K. Kalevich , M. M. Afanasiev , K. V. Kavokin , Z. Hatzopoulos , P. G. Savvidis , E. S. Sedov , A. V. Kavokin

Besides being superfluids, microcavity exciton-polariton condensates are capable of spontaneous pattern formation due to their forced-dissipative dynamics. Their macroscopic and easily detectable response to small perturbations can be…

Quantum Gases · Physics 2012-11-09 Guido Franchetti , Natalia G. Berloff , Jeremy J. Baumberg

We observe spontaneously driven non-ground state polariton condensation in GaAs pillar microcavities under non-resonant optical excitation. We identify a regime where the interplay of exciton-exciton and pair polariton scattering can lead…

Other Condensed Matter · Physics 2015-05-13 M. Maragkou , A. J. D. Grundy , E. Wertz , A. Lemaitre , I. Sagnes , P. Senellart , J. Bloch , P. G. Lagoudakis

We theoretically show the existence of cascaded second-order surface plasmon solitons propagating at the interface between metal and linear dielectric. Nonlocal multipole nonlinearities originating from free conduction electron plasma of a…

Optics · Physics 2014-05-21 Pavel Ginzburg , Alexey Krasavin , Anatoly V. Zayats

Experimental evidence of strong coupling between excitons confined in a quantum well and the photonic modes of a two-dimensional dielectric lattice is reported. Both resonant scattering and photoluminescence spectra at low temperature show…

Optical trapping and manipulation of microcavity exciton polaritons rely on effective potentials induced by the interaction of polaritons with a reservoir of high energy excitonic particles injected by an off-resonant optical pump. Here, we…

Quantum fluids of light are realized in semiconductor microcavities by exciton-polaritons, solid-state quasi-particles with a light mass and sizeable interactions. Here, we use the microscopic analogue of oceanographic techniques to measure…

Optical trapping has been proven to be an effective method of separating exciton-polariton condensates from the incoherent high-energy excitonic reservoir located at the pumping laser position. This technique has significantly improved the…

We explore the behaviour of a system which consists of a photon mode dipole coupled to a medium of two-level oscillators in a microcavity in the presence of decoherence. We consider two types of decoherence processes which are analogous to…

Condensed Matter · Physics 2009-11-10 M. H. Szymanska , P. B. Littlewood , B. D. Simons

The ultrafast scattering dynamics of intersubband polaritons in dispersive cavities embedding GaAs/AlGaAs quantum wells are studied directly within their band structure using a non-collinear pump-probe geometry with phase-stable…

We study the texture of the exciton condensate at low temperatures in an independently gated electron-hole bilayer system. A model Hamiltonian is solved in real space within a mean-field approximation. It is found that, with increased…

Strongly Correlated Electrons · Physics 2015-05-14 Jian-Xin Zhu , A. R. Bishop
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