Spatiotemporal Electron-Beam Focusing through Parallel Interactions with Shaped Optical Fields
arXiv:2302.05969 · doi:10.1103/PhysRevLett.130.246901
Abstract
The ability to modulate free electrons with light has emerged as a powerful tool to produce attosecond electron wavepackets. 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 separate spatial 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. The proposed approach will facilitate the exploration of previously inaccessible ultrafast atomic-scale phenomena in particular enabling attosecond scanning transmission electron microscopy.
arXiv comment12 pages, 6 figures, 42 references
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Cited by in corpus (10)
- Toward Optimum Coupling between Free Electrons and Confined Optical Modes
- Design for light-based spherical aberration correction of ultrafast electron microscopes
- Quantum effects in the interaction of low-energy electrons with light
- Light-based Chromatic Aberration Correction of Ultrafast Electron Microscopes
- Radiative loss of coherence in free electrons: a long-range quantum phenomenon
- Light-based electron aberration corrector
- Free-Space Optical Modulation of Free Electrons in the Continuous-Wave Regime
- Tunable quantum light by modulated free electrons
- Scattering of ultrashort electron wave packets: optical theorem, differential phase contrast and angular asymmetries
- Free-electron coupling to surface polaritons mediated by small scatterers