Polariton condensation in an organic microcavity utilising a hybrid metal-DBR mirror
Polariton condensation in an organic microcavity utilising a hybrid metal-DBR mirror
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.
McGhee, Kirsty E.
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Putintsev, Anton
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Jayaprakash, Rahul
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Georgiou, Kyriacos
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O'Kane, Mary
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Kilbride, Rachel C.
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Cassella, Elena J
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Cavazzini, Marco
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Sannikov, Denis A.
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Lagoudakis, Pavlos
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Lidzey, David G.
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McGhee, Kirsty E.
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Putintsev, Anton
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Jayaprakash, Rahul
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Georgiou, Kyriacos
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O'Kane, Mary
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Kilbride, Rachel C.
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Cassella, Elena J
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Cavazzini, Marco
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Sannikov, Denis A.
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Lagoudakis, Pavlos
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Lidzey, David G.
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McGhee, Kirsty E., Putintsev, Anton, Jayaprakash, Rahul, Georgiou, Kyriacos, O'Kane, Mary, Kilbride, Rachel C., Cassella, Elena J, Cavazzini, Marco, Sannikov, Denis A., Lagoudakis, Pavlos and Lidzey, David G.
(2021)
Polariton condensation in an organic microcavity utilising a hybrid metal-DBR mirror.
Scientific Reports, 11.
(doi:10.1038/s41598-021-00203-y).
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.
Text
s41598-021-00203-y
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e-pub ahead of print date: 22 October 2021
Identifiers
Local EPrints ID: 456241
URI: http://eprints.soton.ac.uk/id/eprint/456241
ISSN: 2045-2322
PURE UUID: e550927b-69c1-42b8-b588-81b978e94b10
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Date deposited: 26 Apr 2022 21:19
Last modified: 16 Mar 2024 16:32
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Contributors
Author:
Kirsty E. McGhee
Author:
Anton Putintsev
Author:
Rahul Jayaprakash
Author:
Kyriacos Georgiou
Author:
Mary O'Kane
Author:
Rachel C. Kilbride
Author:
Elena J Cassella
Author:
Marco Cavazzini
Author:
Denis A. Sannikov
Author:
Pavlos Lagoudakis
Author:
David G. Lidzey
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