Article (Scientific journals)
Excitonic Resonances in Coherent Anti-Stokes Raman Scattering from Single-Walled Carbon Nanotubes
GORDEEV, Georgy; Lafeta, Lucas; Flavel, Benjamin S. et al.
2023In Journal of Physical Chemistry. C, Nanomaterials and interfaces, 127 (41), p. 20438 - 20444
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Keywords :
Coherent anti Stokes Raman scattering; Exciton resonances; Excitonic resonance; Excitonics; Nonresonant; Orders of magnitude; Phonon resonance; Raman scattering intensity; Resonant effect; Single-walled carbon; Electronic, Optical and Magnetic Materials; Energy (all); Physical and Theoretical Chemistry; Surfaces, Coatings and Films; Physics - Mesoscopic Systems and Quantum Hall Effect; Physics - Materials Science; General Energy
Abstract :
[en] In this work, we investigate the role of exciton resonances in coherent anti-Stokes Raman scattering (er-CARS) in single-walled carbon nanotubes (SWCNTs). We drive the nanotube system in simultaneous phonon and excitonic resonances, and we observe a superior enhancement by orders of magnitude exceeding nonresonant cases. We investigated the resonant effects in several (n, m) chiralities and found that the er-CARS intensity varies more than 4 orders of magnitude between nanotube species determined by excitonic resonant condition. The experimental finding is compared to a perturbation theory model. Finally, we show that such giant resonant nonlinear signals enable rapid mapping and local heating of individualized CNTs, suggesting easy tracking of CNTs for future nanotoxicology studies and therapeutic applications in biological tissues.
Disciplines :
Physics
Author, co-author :
GORDEEV, Georgy  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) ; Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil ; Department of Physics, Freie Universität Berlin, Berlin, Germany
Lafeta, Lucas ;  Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil ; Department of Chemistry and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Munich, Germany
Flavel, Benjamin S. ;  Institute of Nanotechnology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
Jorio, Ado ;  Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
Malard, Leandro M. ;  Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
External co-authors :
yes
Language :
English
Title :
Excitonic Resonances in Coherent Anti-Stokes Raman Scattering from Single-Walled Carbon Nanotubes
Publication date :
19 October 2023
Journal title :
Journal of Physical Chemistry. C, Nanomaterials and interfaces
ISSN :
1932-7447
eISSN :
1932-7455
Publisher :
American Chemical Society
Volume :
127
Issue :
41
Pages :
20438 - 20444
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
Funders :
Fundação de Amparo à Pesquisa do Estado de Minas Gerais
Deutsche Forschungsgemeinschaft
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Instituto de Ciência e Tecnologia de Nanomateriais de Carbono
Financiadora de Estudos e Projetos
Alexander von Humboldt-Stiftung
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Funding text :
G.G. gratefully acknowledges the German Research Foundation (DFG via SFB 658, subproject A6), Dahlem Research School (FU bright fellowship), and Focus Area NanoScale of Freie Universitaet Berlin. L.L. gratefully acknowledges the Alexander von Humboldt Foundation for its financial support. B.F. acknowledges DFG Grants FL 834/5-1, FL 834/7-1, FL 834/9-1, and FL 834/12-1. L.L., A.J., and L.M.M. primarily received financial support from CNPq, CAPES, FAPEMIG (APQ 01321-14), FINEP, Brazilian Institute of Science and Technology (INCT) in Carbon Nanomaterials and Rede Mineira de Materiais 2D (FAPEMIG). L.M.M. also acknowledges the CAPES and Humboldt fellowship. All authors are thankful for the fruitful discussions with Prof. Riichiro Saito and Prof. Stephanie Reich and acknowledge help with language corrections provided by Oisín Garrity.
Commentary :
17 pages, 6 figures
Available on ORBilu :
since 26 December 2023

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