Sub-picosecond thermalization dynamics in condensation of strongly coupled lattice plasmons

Aaro I. Väkeväinen, Antti J. Moilanen, Marek Nečada, Tommi K. Hakala, Konstantinos S. Daskalakis, Päivi Törmä*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

32 Sitaatiot (Scopus)
69 Lataukset (Pure)

Abstrakti

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. Understanding the sub-picosecond dynamics of driven-dissipative condensates of interacting bosons is challenging. Here the authors combine a lattice of plasmonic nanoparticles with a dye molecule solution in strong coupling and reveal distinct lasing, stimulated thermalization, and condensation regimes.

AlkuperäiskieliEnglanti
Artikkeli3139
Sivut1-12
Sivumäärä12
JulkaisuNature Communications
Vuosikerta11
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 1 jouluk. 2020
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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