Investigation of physics on light–matter interaction and strong coupling formation in organic microcavities is important to characterize the device structure enabling efficient room-temperature polariton condensation. In this study, we evaluate quantitatively the light–matter interaction parameters for three types of organic single-crystal microcavities and discuss the effects of microcavity structures on the strong coupling formation. We found that improvement in cavity quality factor causes a reduction in the photon damping constant, which results in an increase in the Rabi splitting energy. Moreover, when we used a metal thin film as the cavity mirror, it was revealed that the exciton damping became 30 times stronger than that in a dielectric mirror cavity. These experimental findings are very intriguing to achieve low-threshold or electrically pumped organic polariton devices.

中文翻译：

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定量评估有机单晶微腔中光-质相互作用参数

对有机微腔中光-质相互作用和强耦合形成的物理学研究对于表征可实现有效的室温极化子凝聚的器件结构非常重要。在这项研究中，我们定量评估了三种类型的有机单晶微腔的光-质相互作用参数，并讨论了微腔结构对强耦合形成的影响。我们发现，腔质量因数的提高会导致光子阻尼常数的减小，从而导致拉比分裂能的增加。此外，当我们使用金属薄膜作为腔镜时，发现激子阻尼比介电镜腔强30倍。