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Nonlinear spectroscopy of excitonic states in transition metal dichalcogenides

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dc.contributor.authorZhumagulov, Y. V.
dc.contributor.authorGulevich, D. R.
dc.contributor.authorVagov, A.
dc.contributor.authorPerebeinos, V.
dc.contributor.authorNeverov, V. D.
dc.contributor.authorLukyanov, A. E.
dc.contributor.authorKrasavin, A. V.
dc.contributor.authorНеверов, Вячеслав Дмитриевич
dc.contributor.authorЛукьянов, Александр Евгеньевич
dc.contributor.authorКрасавин, Андрей Валерьевич
dc.date.accessioned2024-12-26T11:07:59Z
dc.date.available2024-12-26T11:07:59Z
dc.date.issued2022
dc.description.abstract© 2022 American Physical Society.Second-harmonic generation (SHG) is a well-known nonlinear spectroscopy method to probe electronic structure, specifically, in transition metal dichalcogenide (TMDC) monolayers. This work investigates the nonlinear dynamics of a strongly excited TMDC monolayer by solving the time evolution equations for the density matrix. It is shown that the presence of excitons qualitatively changes the nonlinear dynamics leading, in particular, to a huge enhancement of the nonlinear signal as a function of the dielectric environment. It is also shown that the SHG polarization angular diagram and its dependence on the driving strength are very sensitive to the type of exciton state. This sensitivity suggests that SHG spectroscopy is a convenient tool for analyzing the fine structure of excitonic states.
dc.identifier.citationNonlinear spectroscopy of excitonic states in transition metal dichalcogenides / Zhumagulov, Y.V. [et al.] // Physical Review B. - 2022. - 105. - № 11. - 10.1103/PhysRevB.105.115436
dc.identifier.doi10.1103/PhysRevB.105.115436
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevB.105.115436
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dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/28990
dc.relation.ispartofPhysical Review B
dc.titleNonlinear spectroscopy of excitonic states in transition metal dichalcogenides
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue11
oaire.citation.volume105
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