Nano-second exciton-polariton lasing in organic microcavities

Organic semiconductors are a promising platform for ambient polaritonics. Several applications, such as polariton routers, and many-body condensed matter phenomena are currently hindered due to the ultra-short polariton lifetimes in organics. Here, we employ a single-shot dispersion imaging techniqu...

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Bibliographic Details
Published in:Applied physics letters 2020-09, Vol.117 (12)
Main Authors: Putintsev, A., Zasedatelev, A., McGhee, K. E., Cookson, T., Georgiou, K., Sannikov, D., Lidzey, D. G., Lagoudakis, P. G.
Format: Article
Language:English
Subjects:
Applied physics
Condensed matter physics
Excitons
Imaging techniques
Lasing
Line spectra
Microcavities
Organic semiconductors
Photoluminescence
Polaritons
Quasi-steady states
Routers
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Summary:Organic semiconductors are a promising platform for ambient polaritonics. Several applications, such as polariton routers, and many-body condensed matter phenomena are currently hindered due to the ultra-short polariton lifetimes in organics. Here, we employ a single-shot dispersion imaging technique, using 4 ns long non-resonant excitation pulses, to study polariton lasing in a λ / 2 planar organic microcavity filled with BODIPY-Br dye molecules. At a power threshold density of 1.5   MW / cm 2, we observe the transition to a quasi-steady state, 1.2 ns long-lived, single-mode polariton lasing and the concomitant superlinear increase in photoluminescence, spectral line-narrowing, and energy blueshift.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0019195