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Transition between cooperative emission regimes in giant perovskite nanocrystals
Etsuki Kobiyama, Gabriele Rainò, Yuliia Berezovska +6
Interactions between emitters within an ensemble can give rise to cooperative processes that significantly alter the properties of the emitted light. One such process is superfluor…
Observation of a supersolid phase in a spin-orbit coupled exciton-polariton Bose-Einstein condensate at room temperature
Marcin Muszyński, Pavel Kokhanchik, Rafał Mirek +18
In Bose-Einstein condensates (BEC), spin-orbit coupling (SOC) produces supersolidity. It is a peculiar state of matter, which, in addition to the superfluid behaviour shows periodi…
In-situ tunable, room-temperature polariton condensation in individual states of a 1D topological lattice
Ioannis Georgakilas, Rafał Mirek, Darius Urbonas +4
In recent years, exciton-polariton microcavity arrays have emerged as a promising semiconductor-based platform for analogue simulations of model Hamiltonians and topological effect…
Organic single-photon switch
Anton Zasedatelev, Anton V. Baranikov, Denis Sannikov +9
The recent progress in nanotechnology [1,2] and single-molecule spectroscopy [3-5] paves the way for cost-effective organic quantum optical technologies emergent with a promise to…
Zero-dimensional organic exciton-polaritons in tunable coupled Gaussian defect microcavities at room temperature
Darius Urbonas, Thilo Stöferle, Fabio Scafirimuto +2
We demonstrate strong light-matter interaction at ambient conditions between a ladder-type conjugated polymer and the individual modes of a vertical microcavity with tunable resona…
Room-Temperature Exciton-Polariton Condensation in a Tunable Zero-Dimensional Microcavity
Fabio Scafirimuto, Darius Urbonas, Ullrich Scherf +2
We create exciton-polaritons in a zero-dimensional (0D) microcavity filled with organic ladder-type conjugated polymer in the strong light-matter interaction regime. Photonic confi…
Long Exciton Dephasing Time and Coherent Phonon Coupling in CsPbBrCl Perovskite Nanocrystals
Michael A. Becker, Lorenzo Scarpelli, Georgian Nedelcu +7
Fully-inorganic cesium lead halide perovskite nanocrystals (NCs) have shown to exhibit outstanding optical properties such as wide spectral tunability, high quantum yield, high osc…
Superfluorescence from Lead Halide Perovskite Quantum Dot Superlattices
Gabriele Rainò, Michael A. Becker, Maryna I. Bodnarchuk +3
An ensemble of emitters can behave significantly different from its individual constituents when interacting coherently via a common light field. After excitation, collective coupl…
Bright triplet excitons in lead halide perovskites
Michael A. Becker, Roman Vaxenburg, Georgian Nedelcu +13
Nanostructured semiconductors emit light from electronic states known as excitons[1]. According to Hund's rules[2], the lowest energy exciton in organic materials should be a poorl…