Cargando…

Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity

Bosonic condensation belongs to the most intriguing phenomena in physics, and was mostly reserved for experiments with ultra-cold quantum gases. More recently, it became accessible in exciton-based solid-state systems at elevated temperatures. Here, we demonstrate bosonic condensation driven by exci...

Descripción completa

Detalles Bibliográficos
Autores principales: Waldherr, Max, Lundt, Nils, Klaas, Martin, Betzold, Simon, Wurdack, Matthias, Baumann, Vasilij, Estrecho, Eliezer, Nalitov, Anton, Cherotchenko, Evgenia, Cai, Hui, Ostrovskaya, Elena A., Kavokin, Alexey V., Tongay, Sefaattin, Klembt, Sebastian, Höfling, Sven, Schneider, Christian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6095855/
https://www.ncbi.nlm.nih.gov/pubmed/30115908
http://dx.doi.org/10.1038/s41467-018-05532-7
_version_ 1783347994942242816
author Waldherr, Max
Lundt, Nils
Klaas, Martin
Betzold, Simon
Wurdack, Matthias
Baumann, Vasilij
Estrecho, Eliezer
Nalitov, Anton
Cherotchenko, Evgenia
Cai, Hui
Ostrovskaya, Elena A.
Kavokin, Alexey V.
Tongay, Sefaattin
Klembt, Sebastian
Höfling, Sven
Schneider, Christian
author_facet Waldherr, Max
Lundt, Nils
Klaas, Martin
Betzold, Simon
Wurdack, Matthias
Baumann, Vasilij
Estrecho, Eliezer
Nalitov, Anton
Cherotchenko, Evgenia
Cai, Hui
Ostrovskaya, Elena A.
Kavokin, Alexey V.
Tongay, Sefaattin
Klembt, Sebastian
Höfling, Sven
Schneider, Christian
author_sort Waldherr, Max
collection PubMed
description Bosonic condensation belongs to the most intriguing phenomena in physics, and was mostly reserved for experiments with ultra-cold quantum gases. More recently, it became accessible in exciton-based solid-state systems at elevated temperatures. Here, we demonstrate bosonic condensation driven by excitons hosted in an atomically thin layer of MoSe(2), strongly coupled to light in a solid-state resonator. The structure is operated in the regime of collective strong coupling between a Tamm-plasmon resonance, GaAs quantum well excitons, and two-dimensional excitons confined in the monolayer crystal. Polariton condensation in a monolayer crystal manifests by a superlinear increase of emission intensity from the hybrid polariton mode, its density-dependent blueshift, and a dramatic collapse of the emission linewidth, a hallmark of temporal coherence. Importantly, we observe a significant spin-polarization in the injected polariton condensate, a fingerprint for spin-valley locking in monolayer excitons. Our results pave the way towards highly nonlinear, coherent valleytronic devices and light sources.
format Online
Article
Text
id pubmed-6095855
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-60958552018-08-20 Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity Waldherr, Max Lundt, Nils Klaas, Martin Betzold, Simon Wurdack, Matthias Baumann, Vasilij Estrecho, Eliezer Nalitov, Anton Cherotchenko, Evgenia Cai, Hui Ostrovskaya, Elena A. Kavokin, Alexey V. Tongay, Sefaattin Klembt, Sebastian Höfling, Sven Schneider, Christian Nat Commun Article Bosonic condensation belongs to the most intriguing phenomena in physics, and was mostly reserved for experiments with ultra-cold quantum gases. More recently, it became accessible in exciton-based solid-state systems at elevated temperatures. Here, we demonstrate bosonic condensation driven by excitons hosted in an atomically thin layer of MoSe(2), strongly coupled to light in a solid-state resonator. The structure is operated in the regime of collective strong coupling between a Tamm-plasmon resonance, GaAs quantum well excitons, and two-dimensional excitons confined in the monolayer crystal. Polariton condensation in a monolayer crystal manifests by a superlinear increase of emission intensity from the hybrid polariton mode, its density-dependent blueshift, and a dramatic collapse of the emission linewidth, a hallmark of temporal coherence. Importantly, we observe a significant spin-polarization in the injected polariton condensate, a fingerprint for spin-valley locking in monolayer excitons. Our results pave the way towards highly nonlinear, coherent valleytronic devices and light sources. Nature Publishing Group UK 2018-08-16 /pmc/articles/PMC6095855/ /pubmed/30115908 http://dx.doi.org/10.1038/s41467-018-05532-7 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Waldherr, Max
Lundt, Nils
Klaas, Martin
Betzold, Simon
Wurdack, Matthias
Baumann, Vasilij
Estrecho, Eliezer
Nalitov, Anton
Cherotchenko, Evgenia
Cai, Hui
Ostrovskaya, Elena A.
Kavokin, Alexey V.
Tongay, Sefaattin
Klembt, Sebastian
Höfling, Sven
Schneider, Christian
Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity
title Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity
title_full Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity
title_fullStr Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity
title_full_unstemmed Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity
title_short Observation of bosonic condensation in a hybrid monolayer MoSe(2)-GaAs microcavity
title_sort observation of bosonic condensation in a hybrid monolayer mose(2)-gaas microcavity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6095855/
https://www.ncbi.nlm.nih.gov/pubmed/30115908
http://dx.doi.org/10.1038/s41467-018-05532-7
work_keys_str_mv AT waldherrmax observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT lundtnils observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT klaasmartin observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT betzoldsimon observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT wurdackmatthias observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT baumannvasilij observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT estrechoeliezer observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT nalitovanton observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT cherotchenkoevgenia observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT caihui observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT ostrovskayaelenaa observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT kavokinalexeyv observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT tongaysefaattin observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT klembtsebastian observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT hoflingsven observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity
AT schneiderchristian observationofbosoniccondensationinahybridmonolayermose2gaasmicrocavity