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Establishing the excitation field in tip-enhanced Raman spectroscopy to study nanostructures within two-dimensional systems

The optical field generated by a nanoplasmonic probe is revealed in tip-enhanced Raman spectroscopy (TERS) experiments. The TERS intensity profile of nano-objects smaller than the probe’s apex has a donut-like shape which resembles the magnitude of the field generated by a point-dipole source, being...

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Hauptverfasser: Miranda, Hudson Luiz Silva de (VerfasserIn) , Monken, Vitor (VerfasserIn) , Campos, João Luiz E. (VerfasserIn) , Vasconcelos, Thiago L. (VerfasserIn) , Rabelo, Cassiano (VerfasserIn) , Archanjo, Bráulio S. (VerfasserIn) , Almeida, Clara M. (VerfasserIn) , Grieger, Sebastian (VerfasserIn) , Backes, Claudia (VerfasserIn) , Jorio, Ado (VerfasserIn) , Cançado, Luiz Gustavo (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 20 October 2022
In: 2D Materials
Year: 2022, Jahrgang: 10, Pages: ?
ISSN:2053-1583
DOI:10.1088/2053-1583/ac988f
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/2053-1583/ac988f
Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1088/2053-1583/ac988f
Volltext
Verfasserangaben:Hudson Miranda, Vitor Monken, João Luiz E. Campos, Thiago L. Vasconcelos, Cassiano Rabelo, Bráulio S. Archanjo, Clara M. Almeida, Sebastian Grieger, Claudia Backes, Ado Jorio, Luiz Gustavo Cançado
Beschreibung
Zusammenfassung:The optical field generated by a nanoplasmonic probe is revealed in tip-enhanced Raman spectroscopy (TERS) experiments. The TERS intensity profile of nano-objects smaller than the probe’s apex has a donut-like shape which resembles the magnitude of the field generated by a point-dipole source, being well described by the Dyadic Green’s function. Having prior knowledge on the excitation field generated by the TERS probe, we measured the width of shear solitons caused by lattice reconstruction in low-angle twisted bilayer graphene, a prominent platform for twistronics, and the extend of defect-induced light emission from graphene edges.
Beschreibung:Gesehen am 16.01.2023
Beschreibung:Online Resource
ISSN:2053-1583
DOI:10.1088/2053-1583/ac988f

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