| Autor: |
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 |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
2D Materials. 10:015002 |
| ISSN: |
2053-1583 |
| DOI: |
10.1088/2053-1583/ac988f |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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