Destructive Photon Echo Formation in Six-Wave Mixing Signals of a MoSe2 Monolayer
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Date
2022-01-05
Authors
Hahn, Thilo
Václavková, Diana
Bartoš, Miroslav
Nogajewski, Karol
Potemski, Marek
Watanabe, Kenji
Taniguchi, Takashi
Machnikowski, Paweł
Kuhn, Tilmann
Kasprzak, Jacek
ORCID
0000-0002-5923-0260Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley-VCH
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Abstract
Monolayers of transition metal dichalcogenides display a strong excitonic optical response. Additionally encapsulating the monolayer with hexagonal boron nitride allows to reach the limit of a purely homogeneously broadened exciton system. On such a MoSe2-based system, ultrafast six-wave mixing spectroscopy is performed and a novel destructive photon echo effect is found. This process manifests as a characteristic depression of the nonlinear signal dynamics when scanning the delay between the applied laser pulses. By theoretically describing the process within a local field model, an excellent agreement with the experiment is reached. An effective Bloch vector representation is developed and thereby it is demonstrated that the destructive photon echo stems from a destructive interference of successive repetitions of the heterodyning experiment.
Description
Citation
Advanced Science. 2022, vol. 9, issue 1, p. 1-13.
https://onlinelibrary.wiley.com/doi/10.1002/advs.202103813
https://onlinelibrary.wiley.com/doi/10.1002/advs.202103813
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en