Berlin 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HL: Fachverband Halbleiterphysik
HL 54: Organic semiconductors
HL 54.8: Vortrag
Freitag, 16. März 2018, 11:30–11:45, EW 203
Tuneable Light-Matter Hybridization in Open Organic Microcavities — •Simon Betzold1, Marco Dusel1, Stefanie Herbst2, Jürgen Ohmer3, Utz Fischer3, Aurelien A. P. Trichet4, Jason M. Smith4, Frank Würthner2, Sven Höfling1,5, and Christof P. Dietrich1 — 1Technische Physik, University of Würzburg, Germany — 2Institut für Organische Chemie and Center for Nanosystems Chemistry, University of Würzburg, Germany — 3Institut für Biochemie, University of Würzburg, Germany — 4Department of Materials, University of Oxford, United Kingdom — 5SUPA, School of Physics and Astronomy, University of St Andrews, United Kingdom
Strong interaction between excitons and photons, e.g. in a semiconductor microcavity, lead to the formation of hybrid light-matter quasiparticles called exciton-polaritons. Frenkel excitons, characteristic of organic semiconductors, possess large binding energies, making polariton experiments at ambient conditions possible. Organic materials further exhibit large oscillator strenghts and thus strongly interact with a cavity field. Open cavities are tunable systems rendering non-invasive investigation possible and allow independent control of the excitonic and the photonic part (e.g. mode detuning). Here, we demonstrate the versatility of open cavities and examine the strong exciton-photon coupling between different organic systems (J-aggregates, proteins) and the dielectric cavity for 2D (planar) and 0D (hemispherical) cavities. We further analyzed the transversal mode patterns of the emission of hemispherical cavities.