Dark Solitons in Waveguide Polariton Fluids Shed Light on Interaction Constants
Quantum Gases
2017-09-06 v1 Mesoscale and Nanoscale Physics
Pattern Formation and Solitons
Optics
Abstract
We study exciton-polariton nonlinear optical fluids in a high momentum regime for the first time. Defects in the fluid develop into dark solitons whose healing length decreases with increasing density. We deduce interaction constants for continuous wave polaritons an order of magnitude larger than with picosecond pulses. Time dependent measurements show a 100ps time for the buildup of the interaction strength suggesting a self-generated excitonic reservoir as the source of the extra nonlinearity. The experimental results agree well with a model of coupled photons, excitons and the reservoir.
Keywords
Cite
@article{arxiv.1703.08351,
title = {Dark Solitons in Waveguide Polariton Fluids Shed Light on Interaction Constants},
author = {P. M. Walker and L. Tinkler and B. Royall and D. V. Skryabin and I. Farrer and D. A. Ritchie and M. S. Skolnick and D. N. Krizhanovskii},
journal= {arXiv preprint arXiv:1703.08351},
year = {2017}
}