Abstract

We have developed a simplified approach to fabricate high-reflectivity mirrors suitable for applications in a strongly-coupled organic-semiconductor microcavity. Such mirrors are based on a small number of quarter-wave dielectric pairs deposited on top of a thick silver film that combine high reflectivity and broad reflectivity bandwidth. Using this approach, we construct a microcavity containing the molecular dye BODIPY-Br in which the bottom cavity mirror is composed of a silver layer coated by a SiO2 and a Nb2O5 film, and show that this cavity undergoes polariton condensation at a similar threshold to that of a control cavity whose bottom mirror consists of ten quarter-wave dielectric pairs. We observe, however, that the roughness of the hybrid mirror—caused by limited adhesion between the silver and the dielectric pair—apparently prevents complete collapse of the population to the ground polariton state above the condensation threshold.

Details

Title
Polariton condensation in an organic microcavity utilising a hybrid metal-DBR mirror
Author
McGhee, Kirsty E 1 ; Putintsev Anton 2 ; Jayaprakash Rahul 1 ; Georgiou Kyriacos 3 ; O’Kane Mary E 1 ; Kilbride, Rachel C 1 ; Cassella, Elena J 1 ; Cavazzini, Marco 4 ; Sannikov, Denis A 2 ; Lagoudakis, Pavlos G 5 ; Lidzey David G 1 

 University of Sheffield, Department of Physics and Astronomy, Sheffield, UK (GRID:grid.11835.3e) (ISNI:0000 0004 1936 9262) 
 Skolkovo Institute of Science and Technology, Centre of Photonics and Quantum Materials, Moscow, Russian Federation (GRID:grid.454320.4) (ISNI:0000 0004 0555 3608) 
 University of Sheffield, Department of Physics and Astronomy, Sheffield, UK (GRID:grid.11835.3e) (ISNI:0000 0004 1936 9262); University of Cyprus, Department of Physics, Nicosia, Cyprus (GRID:grid.6603.3) (ISNI:0000000121167908) 
 Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”, Milano, Italy (GRID:grid.5326.2) (ISNI:0000 0001 1940 4177) 
 Skolkovo Institute of Science and Technology, Centre of Photonics and Quantum Materials, Moscow, Russian Federation (GRID:grid.454320.4) (ISNI:0000 0004 0555 3608); University of Southampton, Department of Physics and Astronomy, Southampton, UK (GRID:grid.5491.9) (ISNI:0000 0004 1936 9297) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2584646729
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.