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  Spatiotemporal Electron Beam Focusing through Parallel Interactions with Shaped Optical Fields

García De Abajo, F., & Ropers, C. (2023). Spatiotemporal Electron Beam Focusing through Parallel Interactions with Shaped Optical Fields. Physical Review Letters, 130(24): 246901. doi:10.1103/PhysRevLett.130.246901.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000D-B088-2 Version Permalink: https://hdl.handle.net/21.11116/0000-000D-B089-1
Genre: Journal Article

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PhysRevLett.130.246901.pdf (Publisher version), 2MB
 
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 Creators:
García De Abajo, F.J., Author
Ropers, Claus1, Author                 
Affiliations:
1Department of Ultrafast Dynamics, Max Planck Institute for Multidisciplinary Sciences, Max Planck Society, ou_3350152              

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 Abstract: The ability to modulate free electrons with light has emerged as a powerful tool to produce attosecond electron wave packets. However, research has so far aimed at the manipulation of the longitudinal wave function component, while the transverse degrees of freedom have primarily been utilized for spatial rather than temporal shaping. Here, we show that the coherent superposition of parallel light-electron interactions in transversally separate zones allows for a simultaneous spatial and temporal compression of a convergent electron wave function, enabling the formation of sub-Ångström focal spots of attosecond duration. Specifically, spots spanning just ∼3% of the light optical cycle are shown to be formed, accompanied by an increase by only a factor of 2 in spatial extension relative to an unperturbed beam. The proposed approach will facilitate the exploration of previously inaccessible ultrafast atomic-scale phenomena, in particular enabling attosecond scanning transmission electron microscopy.

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Language(s): eng - English
 Dates: 2023-06-12
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.130.246901
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Project name : This work has been supported in part by the European Research Council (Advanced Grant No. 789104-eNANO), the European Commission (Horizon 2020 Grants No. FET-Proactive 101017720-EBEAM and No. FET-Open 964591-SMART-electron), the Spanish MICINN (PID2020–112625 GB-I00 and Severo Ochoa CEX2019-000910-S), the Catalan CERCA Program, and Fundaciós Cellex and Mir-Puig, and the Humboldt Foundation.
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Project name : eNANO
Grant ID : 789104
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : EBEAM
Grant ID : 101017720
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : SMART-electron
Grant ID : 964591
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 130 (24) Sequence Number: 246901 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1