Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities

Exciton-polaritons form upon strong coupling between electronic excitations of a material and photonic states of a surrounding microcavity. In organic semiconductors the special nature of excited states leads to particularly strong coupling and facilitates condensation of exciton-polaritons at room...

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Main Authors:	Graf, Arko, Tropf, Laura, Zakharko, Yuriy, Zaumseil, Jana, Gather, Malte C.
Format:	Online
Language:	English
Published:	Nature Publishing Group 2016
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5062498/

id	pubmed-5062498
recordtype	oai_dc
spelling	pubmed-50624982016-10-27 Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities Graf, Arko Tropf, Laura Zakharko, Yuriy Zaumseil, Jana Gather, Malte C. Article Exciton-polaritons form upon strong coupling between electronic excitations of a material and photonic states of a surrounding microcavity. In organic semiconductors the special nature of excited states leads to particularly strong coupling and facilitates condensation of exciton-polaritons at room temperature, which may lead to electrically pumped organic polariton lasers. However, charge carrier mobility and photo-stability in currently used materials is limited and exciton-polariton emission so far has been restricted to visible wavelengths. Here, we demonstrate strong light-matter coupling in the near infrared using single-walled carbon nanotubes (SWCNTs) in a polymer matrix and a planar metal-clad cavity. By exploiting the exceptional oscillator strength and sharp excitonic transition of (6,5) SWCNTs, we achieve large Rabi splitting (>110 meV), efficient polariton relaxation and narrow band emission (<15 meV). Given their high charge carrier mobility and excellent photostability, SWCNTs represent a promising new avenue towards practical exciton-polariton devices operating at telecommunication wavelengths. Nature Publishing Group 2016-10-10 /pmc/articles/PMC5062498/ /pubmed/27721454 http://dx.doi.org/10.1038/ncomms13078 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Graf, Arko Tropf, Laura Zakharko, Yuriy Zaumseil, Jana Gather, Malte C.
spellingShingle	Graf, Arko Tropf, Laura Zakharko, Yuriy Zaumseil, Jana Gather, Malte C. Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities
author_facet	Graf, Arko Tropf, Laura Zakharko, Yuriy Zaumseil, Jana Gather, Malte C.
author_sort	Graf, Arko
title	Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities
title_short	Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities
title_full	Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities
title_fullStr	Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities
title_full_unstemmed	Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities
title_sort	near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities
description	Exciton-polaritons form upon strong coupling between electronic excitations of a material and photonic states of a surrounding microcavity. In organic semiconductors the special nature of excited states leads to particularly strong coupling and facilitates condensation of exciton-polaritons at room temperature, which may lead to electrically pumped organic polariton lasers. However, charge carrier mobility and photo-stability in currently used materials is limited and exciton-polariton emission so far has been restricted to visible wavelengths. Here, we demonstrate strong light-matter coupling in the near infrared using single-walled carbon nanotubes (SWCNTs) in a polymer matrix and a planar metal-clad cavity. By exploiting the exceptional oscillator strength and sharp excitonic transition of (6,5) SWCNTs, we achieve large Rabi splitting (>110 meV), efficient polariton relaxation and narrow band emission (<15 meV). Given their high charge carrier mobility and excellent photostability, SWCNTs represent a promising new avenue towards practical exciton-polariton devices operating at telecommunication wavelengths.
publisher	Nature Publishing Group
publishDate	2016
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5062498/
_version_	1613682629655134208

Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities

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