Raj Pandya, Richard Y S Chen, Qifei Gu, Jooyoung Sung, Christoph Schnedermann, Oluwafemi S Ojambati, Rohit Chikkaraddy, Jeffrey Gorman, Gianni Jacucci, Olimpia D Onelli, Tom Willhammar, Duncan N Johnstone, Sean M Collins, Paul A Midgley, Florian Auras, Tomi Baikie, Rahul Jayaprakash, Fabrice Mathevet, Richard Soucek, Matthew Du, Antonios M Alvertis, Arjun Ashoka, Silvia Vignolini, David G Lidzey, Jeremy J Baumberg, Richard H Friend, Thierry Barisien, Laurent Legrand, Alex W Chin, Joel Yuen-Zhou, Semion K Saikin, Philipp Kukura, Andrew J Musser, Akshay Rao
Strong-coupling between excitons and confined photonic modes can lead to the formation of new quasi-particles termed exciton-polaritons which can display a range of interesting properties such as super-fluidity, ultrafast transport and Bose-Einstein condensation. Strong-coupling typically occurs when an excitonic material is confided in a dielectric or plasmonic microcavity. Here, we show polaritons can form at room temperature in a range of chemically diverse, organic semiconductor thin films, despite the absence of an external cavity...
November 11, 2021: Nature Communications