Lorentz microscopy of optical fields.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
17 Oct 2023
17 Oct 2023
Historique:
received:
20
10
2022
accepted:
25
09
2023
medline:
18
10
2023
pubmed:
18
10
2023
entrez:
17
10
2023
Statut:
epublish
Résumé
In electron microscopy, detailed insights into nanoscale optical properties of materials are gained by spontaneous inelastic scattering leading to electron-energy loss and cathodoluminescence. Stimulated scattering in the presence of external sample excitation allows for mode- and polarization-selective photon-induced near-field electron microscopy (PINEM). This process imprints a spatial phase profile inherited from the optical fields onto the wave function of the probing electrons. Here, we introduce Lorentz-PINEM for the full-field, non-invasive imaging of complex optical near fields at high spatial resolution. We use energy-filtered defocus phase-contrast imaging and iterative phase retrieval to reconstruct the phase distribution of interfering surface-bound modes on a plasmonic nanotip. Our approach is universally applicable to retrieve the spatially varying phase of nanoscale fields and topological modes.
Identifiants
pubmed: 37848420
doi: 10.1038/s41467-023-42054-3
pii: 10.1038/s41467-023-42054-3
pmc: PMC10582189
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
6545Subventions
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : 217133147
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : 432680300
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : RO 3936/4-1
Organisme : EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council)
ID : 101017720
Informations de copyright
© 2023. Springer Nature Limited.
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