Russo, M., McGhee, K.E., Virgili, T. et al. (3 more authors) (2022) Dephasing processes in the molecular dye Lumogen-F orange characterized by two-dimensional electronic spectroscopy. Molecules, 27 (20). 7095. ISSN 1420-3049
Abstract
Molecular dyes are finding more and more applications in photonics and quantum technologies, such as polaritonic optical microcavities, organic quantum batteries and single-photon emitters for quantum sensing and metrology. For all these applications, it is of crucial importance to characterize the dephasing mechanisms. In this work we use two-dimensional electronic spectroscopy (2DES) to study the temperature dependent dephasing processes in the prototypical organic dye Lumogen-F orange. We model the 2DES maps using the Bloch equations for a two-level system and obtain a dephasing time T2 = 53 fs at room temperature, which increases to T2 = 94 fs at 86 K. Furthermore, spectral diffusion processes are observed and modeled by a combination of underdamped and overdamped Brownian oscillators. Our results provide useful design parameters for advanced optoelectronic and photonic devices incorporating dye molecules.
Metadata
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Copyright, Publisher and Additional Information: | © 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | ||||
Keywords: | decoherence; ultrafast spectroscopy; two-dimensional electronic spectroscopy; dye molecules; spectral diffusion | ||||
Dates: |
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) | ||||
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 08 Nov 2022 12:45 | ||||
Last Modified: | 08 Nov 2022 12:45 | ||||
Status: | Published | ||||
Publisher: | MDPI AG | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.3390/molecules27207095 | ||||
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