Polariton ring condensates and sunflower ripples in an expanding quantum liquid
Mesoscale and Nanoscale Physics
2012-01-11 v1 Quantum Gases
Quantum Physics
Abstract
Optically pumping high quality semiconductor microcavities allows for the spontaneous formation of polariton condensates, which can propagate over distances of many microns. Tightly focussed pump spots here are found to produce expanding incoherent bottleneck polaritons which coherently amplify the ballistic polaritons and lead to the formation of unusual ring condensates. This quantum liquid is found to form a remarkable sunflower-like spatial ripple pattern which arises from self interference with Rayleigh-scattered coherent polariton waves in the Cerenkov regime.
Keywords
Cite
@article{arxiv.1201.2114,
title = {Polariton ring condensates and sunflower ripples in an expanding quantum liquid},
author = {Gabriel Christmann and Guilherme Tosi and Natalia G. Berloff and Panos Tsotsis and Peter S. Eldridge and Zacharias Hatzopoulos and Pavlos G. Savvidis and Jeremy J. Baumberg},
journal= {arXiv preprint arXiv:1201.2114},
year = {2012}
}