Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide

Detalhes bibliográficos
Autor(a) principal: Rosa, Henrique G.
Data de Publicação: 2018
Outros Autores: Ho, Yi Wei, Verzhbitskiy, Ivan, Rodrigues, Manuel José Lima Ferreira, Taniguchi, Takashi, Watanabe, Kenji, Eda, Goki, Pereira, Vitor M., Gomes, José C. V.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/65791
Resumo: Supplementary information accompanies this paper at https://doi.org/10.1038/s41598-018-28374-1
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spelling Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenideScience & TechnologySupplementary information accompanies this paper at https://doi.org/10.1038/s41598-018-28374-1We report the first detailed characterization of the sheet third-harmonic optical susceptibility, χ(3)s, of tungsten diselenide (WSe2). With a home-built multiphoton microscope setup developed to study harmonics generation, we map the second and third-harmonic intensities as a function of position in the sample, pump power and polarization angle, for single- and few-layers flakes of WSe2. We register a value of |χ(3)s| ≈ 0.9 × 10-28 m3 V-2 at a fundamental excitation frequency of ℏω = 0.8 eV, which is comparable in magnitude to the third-harmonic susceptibility of other group-VI transition metal dichalcogenides. The simultaneously recorded sheet second-harmonic susceptibility is found to be |χ(2)s| ≈ 0.7 × 10-19 m2 V-1 in very good agreement on the order of magnitude with recent reports for WSe2, which asserts the robustness of our values for |χ(3)s|.Y.W.H. acknowledges scholarship support from NGS. G.E. acknowledges financial support from National Research Foundation of Singapore (NRF Research Fellowship NRF-NRFF2011-02 and medium-sized centre programme) and Ministry of Education of Singapore (AcRF Tier 2 MOE2015-T2-2-123). V. M. P. acknowledges fnancial support from Ministry of Education of Singapore (FRC AcRF Tier 1 R-144-000-386-114). J.C.V.G. acknowledges fnancial support from CA2DM through National Research Foundation of Singapore (NRF-CRP Grant No. R-144-000-295-281).Nature ResearchUniversidade do MinhoRosa, Henrique G.Ho, Yi WeiVerzhbitskiy, IvanRodrigues, Manuel José Lima FerreiraTaniguchi, TakashiWatanabe, KenjiEda, GokiPereira, Vitor M.Gomes, José C. V.2018-07-032018-07-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/65791eng2045-232210.1038/s41598-018-28374-129968813info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:15:36Zoai:repositorium.sdum.uminho.pt:1822/65791Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:08:04.745225Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
title Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
spellingShingle Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
Rosa, Henrique G.
Science & Technology
title_short Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
title_full Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
title_fullStr Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
title_full_unstemmed Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
title_sort Characterization of the second- and third-harmonic optical susceptibilities of atomically thin tungsten diselenide
author Rosa, Henrique G.
author_facet Rosa, Henrique G.
Ho, Yi Wei
Verzhbitskiy, Ivan
Rodrigues, Manuel José Lima Ferreira
Taniguchi, Takashi
Watanabe, Kenji
Eda, Goki
Pereira, Vitor M.
Gomes, José C. V.
author_role author
author2 Ho, Yi Wei
Verzhbitskiy, Ivan
Rodrigues, Manuel José Lima Ferreira
Taniguchi, Takashi
Watanabe, Kenji
Eda, Goki
Pereira, Vitor M.
Gomes, José C. V.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Rosa, Henrique G.
Ho, Yi Wei
Verzhbitskiy, Ivan
Rodrigues, Manuel José Lima Ferreira
Taniguchi, Takashi
Watanabe, Kenji
Eda, Goki
Pereira, Vitor M.
Gomes, José C. V.
dc.subject.por.fl_str_mv Science & Technology
topic Science & Technology
description Supplementary information accompanies this paper at https://doi.org/10.1038/s41598-018-28374-1
publishDate 2018
dc.date.none.fl_str_mv 2018-07-03
2018-07-03T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/65791
url http://hdl.handle.net/1822/65791
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2045-2322
10.1038/s41598-018-28374-1
29968813
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dc.publisher.none.fl_str_mv Nature Research
publisher.none.fl_str_mv Nature Research
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