Strong exciton−photon coupling with colloidal quantum dots in a tunable microcavity
Strong exciton−photon coupling with colloidal quantum dots in a tunable microcavity
Polariton emission from optical cavities integrated with various luminophores has been extensively studied recently due to the wide variety of possible applications in photonics, particularly promising in terms of the fabrication of low-threshold sources of coherent emission. Tunable microcavities allow extensive investigation of the photophysical properties of matter placed inside the cavity by deterministically changing the coupling strength and controllable switching from weak to strong and ultra-strong coupling regimes. Here, we demonstrate room-temperature strong coupling of exciton transitions in CdSe/ZnS/CdS/ZnS colloidal quantum dots with the optical modes of a tunable low-mode-volume microcavity. Strong coupling is evidenced by a large Rabi splitting of the photoluminescence spectra depending on the detuning of the microcavity. A coupling strength of 154 meV has been achieved. High quantum yields, excellent photostability, and scalability of fabrication of quantum dots (QDs) pave the way to practical applications of coupled systems based on colloidal QDs in photonics, optoelectronics, and sensing.
Dovzhenko, Dmitrii
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Lednev, Maksim
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Mochalov, Konstantin
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Vaskan, Ivan
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Samokhvalov, Pavel
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Rakovich, Yury
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Nabiev, Igor
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Dovzhenko, Dmitrii
95415e1a-b863-4462-b4bc-78f1ca490352
Lednev, Maksim
01c56b35-4b35-4b8b-9af0-2740a7a4ee9c
Mochalov, Konstantin
bcf5cfc1-60b3-4f56-97b0-2aa1570fadb6
Vaskan, Ivan
4042d007-52c2-458e-868e-5d883c34978c
Samokhvalov, Pavel
7ee3958a-03d7-4b01-9812-52e6150f0bb4
Rakovich, Yury
898f9246-b36f-4906-82fe-8e0297d93a0a
Nabiev, Igor
ac3370cf-94b9-4ab6-a074-67d923dad131
Dovzhenko, Dmitrii, Lednev, Maksim, Mochalov, Konstantin, Vaskan, Ivan, Samokhvalov, Pavel, Rakovich, Yury and Nabiev, Igor
(2021)
Strong exciton−photon coupling with colloidal quantum dots in a tunable microcavity.
Applied Physics Letters, 119 (1), [011102].
(doi:10.1063/5.0047146).
Abstract
Polariton emission from optical cavities integrated with various luminophores has been extensively studied recently due to the wide variety of possible applications in photonics, particularly promising in terms of the fabrication of low-threshold sources of coherent emission. Tunable microcavities allow extensive investigation of the photophysical properties of matter placed inside the cavity by deterministically changing the coupling strength and controllable switching from weak to strong and ultra-strong coupling regimes. Here, we demonstrate room-temperature strong coupling of exciton transitions in CdSe/ZnS/CdS/ZnS colloidal quantum dots with the optical modes of a tunable low-mode-volume microcavity. Strong coupling is evidenced by a large Rabi splitting of the photoluminescence spectra depending on the detuning of the microcavity. A coupling strength of 154 meV has been achieved. High quantum yields, excellent photostability, and scalability of fabrication of quantum dots (QDs) pave the way to practical applications of coupled systems based on colloidal QDs in photonics, optoelectronics, and sensing.
Text
Strong exciton−photon coupling with colloidal quantum dots in a tunable microcavity
- Accepted Manuscript
More information
Accepted/In Press date: 14 June 2021
e-pub ahead of print date: 6 July 2021
Additional Information:
Funding Information:
This study was supported by the Ministry of Science and Higher Education of the Russian Federation, Grant No. 14.Y26.31.0011. The development of all the procedures of, and approaches to, the synthesis of nanomaterials presented in the article were supported by the Russian Science Foundation, Grant No. 20-13-00358. The development of the procedures for obtaining strong coupling in the resonant microcavity was supported by the Russian Foundation for Basic Research, Grant No. 20-21-00080. I.N. acknowledges the support from the Ministry of Higher Education, Research and Innovation of the French Republic and the University of Reims Champagne-Ardenne. Y.R. acknowledges the support from the Basque Government (Grant No. IT1164-19) and from the Spanish program MINECO (No. PID2019-111772RBI00). The authors thank Vladimir Ushakov for the help with technical preparation of the manuscript.
Publisher Copyright:
© 2021 Author(s).
Identifiers
Local EPrints ID: 450986
URI: http://eprints.soton.ac.uk/id/eprint/450986
ISSN: 0003-6951
PURE UUID: 8577575f-7e9a-4e60-8173-67b8c887c453
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Date deposited: 31 Aug 2021 16:31
Last modified: 16 Mar 2024 13:42
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Contributors
Author:
Maksim Lednev
Author:
Konstantin Mochalov
Author:
Ivan Vaskan
Author:
Pavel Samokhvalov
Author:
Yury Rakovich
Author:
Igor Nabiev
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