Strong Exciton-Coherent Phonon Coupling In Single-Layer MoS2

Chiara Trovatello; Chiara Trovatello; Henrique P. C. Miranda; Henrique P. C. Miranda; Alejandro Molina-Sánchez; Alejandro Molina-Sánchez; Rocío Borrego Varillas; Rocío Borrego Varillas; Luca Moretti; Luca Moretti; Lucia Ganzer; Lucia Ganzer; Margherita Maiuri; Margherita Maiuri; Giancarlo Soavi; Giancarlo Soavi; Andrea C. Ferrari; Andrea C. Ferrari; Andrea Marini; Andrea Marini; Ludger Wirtz; Ludger Wirtz; Giulio Cerullo; Giulio Cerullo; Giulio Cerullo; Davide Sangalli; Davide Sangalli; Stefano Dal Conte; Stefano Dal Conte

doi:10.1364/CLEO_QELS.2019.FW3M.7

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2019),
paper FW3M.7
•https://doi.org/10.1364/CLEO_QELS.2019.FW3M.7

Strong Exciton-Coherent Phonon Coupling In Single-Layer MoS₂

Chiara Trovatello, Henrique P. C. Miranda, Alejandro Molina-Sánchez, Rocío Borrego Varillas, Luca Moretti, Lucia Ganzer, Margherita Maiuri, Giancarlo Soavi, Andrea C. Ferrari, Andrea Marini, Ludger Wirtz, Giulio Cerullo, Davide Sangalli, and Stefano Dal Conte

CLEO: QELS_Fundamental Science 2019

San Jose, California United States
5–10 May 2019
ISBN: 978-1-943580-57-6

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Ultrafast Spectroscopy in 2D Materials & Heterostructures (FW3M)

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C. Trovatello, H. P. C. Miranda, A. Molina-Sánchez, R. B. Varillas, L. Moretti, L. Ganzer, M. Maiuri, G. Soavi, A. C. Ferrari, A. Marini, L. Wirtz, G. Cerullo, D. Sangalli, and S. D. Conte, "Strong Exciton-Coherent Phonon Coupling In Single-Layer MoS2," in Conference on Lasers and Electro-Optics, OSA Technical Digest (Optica Publishing Group, 2019), paper FW3M.7.

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Abstract

We use broadband optical pump-probe spectroscopy to study coherent optical phonons in 1L-MoS2. We detect a strong coupling with the A’1 mode, which is enhanced around the C-exciton peak. Ab-initio calculations of the phonon-induced band structure variation fully confirm this result.

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