T. Virgili
Ultrafast polariton relaxation dynamics in an organic semiconductor microcavity
Virgili, T.; Coles, D.; Adawi, A. M.; Clark, C.; Michetti, P.; Rajendran, S. K.; Brida, D.; Polli, D.; Cerullo, G.; Lidzey, D. G.
Authors
D. Coles
Dr Ali Adawi A.Adawi@hull.ac.uk
Reader in Physics
C. Clark
P. Michetti
S. K. Rajendran
D. Brida
D. Polli
G. Cerullo
D. G. Lidzey
Abstract
We study an organic semiconductor microcavity operating in the strong-coupling regime using fs pump-probe spectroscopy. By probing the induced absorption associated with the one-exciton to two-exciton transition, we are able to characterize the time-dependent population densities of states in the upper-and lower-polariton branches following impulsive excitation. We model the time-dependent polariton dynamics and provide direct evidence of a scattering process that returns upper-branch cavity polaritons to states in the exciton reservoir having a rate of (150 fs)(-1). A slower process similarly populates lower-branch polaritons by return scattering from the exciton reservoir.
Citation
Virgili, T., Coles, D., Adawi, A. M., Clark, C., Michetti, P., Rajendran, S. K., …Lidzey, D. G. (2011). Ultrafast polariton relaxation dynamics in an organic semiconductor microcavity. Physical review B: Condensed matter and materials physics, 83(24), 245309. https://doi.org/10.1103/PhysRevB.83.245309
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 20, 2011 |
Online Publication Date | Jun 20, 2011 |
Publication Date | Jun 20, 2011 |
Publicly Available Date | Mar 28, 2024 |
Journal | PHYSICAL REVIEW B |
Print ISSN | 1098-0121 |
Electronic ISSN | 1550-235X |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 83 |
Issue | 24 |
Article Number | ARTN 245309 |
Pages | 245309 |
DOI | https://doi.org/10.1103/PhysRevB.83.245309 |
Keywords | Electronic, Optical and Magnetic Materials; Condensed Matter Physics |
Public URL | https://hull-repository.worktribe.com/output/400144 |
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