DataVXAdvanced Optical MaterialsPaper
journal article·2021-11

Enhanced Light–Matter Interaction and Polariton Relaxation by the Control of Molecular Orientation

Tomohiro Ishii, Fatima Bencheikh, Sébastien Forget, Sébastien Chénais, Benoît Heinrich, David Kreher, Lydia Sosa Vargas, Kiyoshi Miyata, Ken Onda, Takashi Fujihara, Stéphane Kéna‐Cohen, Fabrice Mathevet, Chihaya Adachi

Advanced Optical Materials· Volume 9· Issue 22
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Source abstract

Abstract

Abstract Exciton‐polaritons, in which the electronic state of an excited organic molecule and a photonic state are strongly coupled, can form a Bose–Einstein condensate (BEC) at room temperature. However, so far, the reported thresholds of organic polariton BECs under optical excitation are as high as Pth = 11–500 μJ cm–2. One route toward lowering the condensation threshold is to increase the Rabi energy by aligning the molecular transition dipole moments. In this report, it is demonstrated that control of the orientation of a perylene‐based discotic dye, which is able to self‐organize in mesogenic columnar structures, can significantly enhance exciton–photon interaction and polariton relaxation rate in optical cavities. These results show the importance of the molecular orientation for strong light–matter interactions and provide a promising strategy toward the realization of an organic low threshold polariton BEC system and electrically driven organic polariton BEC.
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Research context

OpenAlex topics: Strong Light-Matter Interactions · Thermal Radiation and Cooling Technologies · Plasmonic and Surface Plasmon Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Organic Photonics and Electronics Research (OPERA) and Department of Applied Chemistry Kyushu University 744 Motooka, Nishi Fukuoka 819‐0395 Japan

Laboratoire de Physique des Lasers (LPL) Université Sorbonne Paris Nord CNRS UMR 7538 Villetaneuse F‐93430 France

Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) UMR‐CNRS 7504 Université de Strasbourg 23 Rue du Loess Strasbourg Cedex 2 67034 France

Institut Parisien de Chimie Moléculaire (IPCM) UMR‐CNRS 8232 Sorbonne Université – Faculté des Sciences 4 Place Jussieu Paris 75005 France

Institut Lavoisier de Versailles (ILV) UMR‐CNRS 8180 Université de Versailles‐Saint‐Quentin‐en‐Yvelines 45 avenue des Etats‐Unis Versailles Cedex 78035 France

Department of Chemistry Kyushu University 744 Motooka, Nishi Fukuoka 819‐0395 Japan

Department of Engineering Physics Polytechnique Montréal Montréal QC H3C 3A7 Canada

International Institute for Carbon Neutral Energy Research (WPI‐I2CNER) Kyushu University 744 Motooka, Nishi Fukuoka 819‐0395 Japan

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