Transition from propagating polariton solitons to a standing wave condensate induced by interactions

Abstract

We explore nonlinear transitions of polariton wavepackets, first, to a soliton and then to a standing wave polariton condensate in a multi-mode microwire system. At low polariton density we observe ballistic propagation of the multi-mode polariton wavepackets arising from the interference between different transverse modes. With increasing polariton density, the wavepackets transform into single mode bright solitons due to effects of both inter-modal and intra-modal polariton-polariton scattering. Further increase of the excitation density increases thermalisation speed leading to relaxation of the polariton density distribution in momentum space with the resultant formation of a non-equilibrium condensate manifested by a standing wave pattern across the whole sample.

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Cited by in corpus (8)

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• Femtosecond dynamics of a polariton bosonic cascade at room temperature
• All-to-all connected networks by multi-frequency excitation of polaritons
• Chaotic Bloch oscillations in dissipative optical systems driven by a periodic train of coherent pulses
• Adiabatic theory of one-dimensional curved polariton waveguides