Spatial patterns of dissipative polariton solitons in semiconductor microcavities
Abstract
Semiconductor microcavities operating in the polaritonic regime are highly non-linear, high speed systems due to the unique half-light, half-matter nature of polaritons. Here, we report for the first time the observation of propagating multi-soliton polariton patterns consisting of multi-peak structures either along (x) or perpendicular to (y) the direction of propagation. Soliton arrays of up to 5 solitons are observed, with the number of solitons controlled by the size or power of the triggering laser pulse. The break-up along the x direction occurs due to interplay of bistability, negative effective mass and polariton-polariton scattering, while in the y direction the break-up results from nonlinear phase-dependent interactions of propagating fronts. We show the experimental results are in good agreement with numerical modelling. Our observations are a step towards ultrafast all-optical signal processing using sequences of solitons as bits of information.
Keywords
Cite
@article{arxiv.1407.7713,
title = {Spatial patterns of dissipative polariton solitons in semiconductor microcavities},
author = {J. K. Chana and M. Sich and F. Fras and A. V. Gorbach and D. V. Skryabin and E. Cancellieri and E. A. Cerda-Méndez and K. Biermann and R. Hey and P. V. Santos and M. S. Skolnick and D. N. Krizhanovskii},
journal= {arXiv preprint arXiv:1407.7713},
year = {2015}
}