Sub-picosecond thermalization dynamics in condensation of strongly coupled lattice plasmons
Abstract
Bosonic condensates offer exciting prospects for studies of non-equilibrium quantum dynamics. Understanding the dynamics is particularly challenging in the sub-picosecond timescales typical for room temperature luminous driven-dissipative condensates. Here we combine a lattice of plasmonic nanoparticles with dye molecule solution at the strong coupling regime, and pump the molecules optically. The emitted light reveals three distinct regimes: one-dimensional lasing, incomplete stimulated thermalization, and two-dimensional multimode condensation. The condensate is achieved by matching the thermalization rate with the lattice size and occurs only for pump pulse durations below a critical value. Our results give access to control and monitoring of thermalization processes and condensate formation at sub-picosecond timescale.
Keywords
Cite
@article{arxiv.1905.07609,
title = {Sub-picosecond thermalization dynamics in condensation of strongly coupled lattice plasmons},
author = {Aaro I. Väkeväinen and Antti J. Moilanen and Marek Nečada and Tommi K. Hakala and Konstantinos S. Daskalakis and Päivi Törmä},
journal= {arXiv preprint arXiv:1905.07609},
year = {2020}
}
Comments
Revised version