Second- and third-order optical susceptibilities across excitons states in 2D monolayer transition metal dichalcogenides

dc.creatorLucas Lafetá Prates da Fonseca
dc.creatorÁurea Isabel Corradi de Oliveira
dc.creatorTianyi Zhang
dc.creatorEthan Kahn
dc.creatorIsmail Bilgin
dc.creatorBruno Ricardo de Carvalho
dc.creatorSwastik Kar
dc.creatorMauricio Terrones Maldonado
dc.creatorLeandro Malard Moreira
dc.date.accessioned2025-02-26T14:53:25Z
dc.date.accessioned2025-09-09T01:33:53Z
dc.date.available2025-02-26T14:53:25Z
dc.date.issued2021
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetos
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.identifier.doihttps://doi.org/10.1088/2053-1583/abeed4
dc.identifier.issn2053-1583
dc.identifier.urihttps://hdl.handle.net/1843/80455
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartof2D Materials
dc.rightsAcesso Restrito
dc.subjectÓptica não-linear
dc.subject.otherNonlinear optics
dc.subject.otherTwo-dimensional materials
dc.subject.otherExcitons
dc.subject.otherSecond-harmonic generation
dc.subject.otherFour-wave mixing
dc.titleSecond- and third-order optical susceptibilities across excitons states in 2D monolayer transition metal dichalcogenides
dc.typeArtigo de periódico
local.citation.epage9
local.citation.issue3
local.citation.spage1
local.citation.volume8
local.description.resumoSemiconducting transition metal dichalcogenides have significant nonlinear optical effects. In this work we have used second-harmonic generation and the four-wave mixing spectroscopy in resonance with the excitons in MoS2, MoSe2, and WS2 monolayers to characterize the nonlinear optical properties of these materials. We show that trions and excitons are responsible for enhancing the nonlinear optical response and determine the exciton and trion energies by comparing with the photoluminescence spectra. Moreover, we extract the second- and third-order optical sheet susceptibility (χ(2) and χ(3)) across exciton energies and compare with values found in the literature. We also demonstrate the ability to generate different nonlinear effects in a wide spectral range in the visible region for monolayer MoS2, opening the possibility of using two-dimensional materials for nonlinear optoelectronic and photonic applications.
local.identifier.orcidhttps://orcid.org/0000-0002-1594-9142
local.identifier.orcidhttps://orcid.org/0000-0002-7614-1972
local.identifier.orcidhttps://orcid.org/0000-0001-5188-8685
local.identifier.orcidhttps://orcid.org/0000-0003-4207-9653
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://iopscience.iop.org/article/10.1088/2053-1583/abeed4

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