Influence of interactions with non-condensed particles on the coherence of a 1D polariton condensate
arXiv:1403.5087 · doi:10.1103/PhysRevB.89.115119
Abstract
One-dimensional polariton condensates (PoCos) in a photonic wire are generated through non-resonant laser excitation, by which also a reservoir of background carriers is created. Interaction with this reservoir may affect the coherence of the PoCo, which is studied here by injecting a condensate locally and monitoring the coherence along the wire. While the incoherent reservoir is mostly present within the excitation laser spot, the condensate can propagate ballistically through the wire. Photon correlation measurements show that far from the laser spot the second order correlation function approaches unity value, as expected for the coherent condensed state. When approaching the spot, however, the correlation function increases up to values of 1.2 showing the addition of noise to the emission due to interaction with the reservoir. This finding is substantiated by measuring the first order coherence by a double slit experiment, which shows a reduced visibility of interference at the excitation laser spot.
arXiv comment8 pages, 8 figures
References in corpus (13)
- Spontaneous formation and optical manipulation of extended polariton condensates
- Persistent currents and quantised vortices in a polariton superfluid
- Polariton Condensation in an optically induced 2D potentia
- Spatial Coherence of a Polariton Condensate
- Propagation and amplification dynamics of 1D polariton condensates
- Energy Relaxation in a 1-D Polariton Condensate
- Observation of grand-canonical number statistics in a photon Bose-Einstein condensate
- Photon lasing in a GaAs microcavity: similarities with a polariton condensate
- Analog Hawking radiation from an acoustic black hole in a flowing polariton superfluid
- Stochastic Formation of Polariton Condensates in Two Degenerate Orbital States
- Black Holes and Wormholes in spinor polariton condensates
- Coherence expansion and polariton condensate formation in a semiconductor microcavity
- Polariton Condensation in a One-Dimensional Disordered Potential
Cited by in corpus (11)
- All-optical flow control of a polariton condensate using non-resonant excitation
- Stability and spatial coherence of nonresonantly pumped exciton-polariton condensates
- Temporally resolved second-order photon correlations of exciton-polariton Bose-Einstein condensate formation
- Periodic squeezing in a polariton Josephson junction
- Ghost Branch Photoluminescence From a Polariton Fluid Under Nonresonant Excitation
- Tracking Dark Excitons with Exciton Polaritons in Semiconductor Microcavities
- Stochastic pumping of a polariton fluid
- Experimental realization of a polariton beam amplifier
- Crossover from exciton-polariton condensation to photon lasing in an optical trap
- Exciton-Polariton Flows in Cross-Dimensional Junctions
- Quantum coherence of a long-lifetime exciton-polariton condensate