Tunable light-matter hybridization in open organic microcavities
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Open microcavities represent a versatile cavity design that allows the external control of internal properties such as cavity thickness and mode detuning without changing the key parameters of the cavity itself, rendering them particularly interesting for light-matter interaction experiments. Here, we demonstrate the tunability of an open microcavity with an embedded active organic layer providing parallel alignment of molecular transition dipole moments as well as strong self-absorption inside the cavity. By decreasing the cavity thickness, we observe a transition from the weak coupling regime into the strong coupling regime evidenced by the onset of avoided crossing behavior between involved modes. This change of coupling mechanism is shown for 2D (planar) as well as 0D (hemispherical) cavities.
Betzold , S , Herbst , S , Trichet , A A P , Smith , J M , Würthner , F , Höfling , S & Dietrich , C 2018 , ' Tunable light-matter hybridization in open organic microcavities ' ACS Photonics , vol. 5 , no. 1 , pp. 90-94 . DOI: 10.1021/acsphotonics.7b00552
Copyright © 2017 American Chemical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1021/acsphotonics.7b00552
DescriptionSv.H. acknowledges funding by the EPSRC ”Hybrid Polaritonics” Grant (EP/M025330/1), F.W. further thanks the Deutsche Forschungsgemeinschaft (DFG) for financial support (WU317/18-1). J.S. and A.A.P.T. thank the Leverhulme Trust (RPG-2012-526) and the UK Engineering and Physical Sciences Research Council (EP/M013243/1) for financial support.
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