ACS Photonics· 2026Q1
Electron Modulation and Ultrafast Near-Field Imaging with Vectorial Laser Fields
- 0citations
- Q1SCImago
- 2026year
Short summary
Researchers demonstrate direct, coherent modulation of electron beams using longitudinally polarized light and vectorial laser fields, enabling attosecond electron pulse generation and novel imaging modes without nanostructures or slanted geometries.
AI-generated from the title and abstract; the full text is not read.
Key points
- Direct, coherent, and linear modulation of electron beams achieved using longitudinally polarized light on a thin membrane.
- Vectorial polarizations used to excite and probe 3D nanophotonic near fields in metallic mesocrystals via electron energy gain/loss.
- Longitudinal electric fields directly excite axial near fields.
- Longitudinal magnetic fields excite oscillating ring currents via azimuthal electric fields.
- Enables tilt-free, collinear generation of attosecond electron pulses or free-electron qubits and novel imaging modes.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract Controlled interaction of laser light with electron beams is fundamental for ultrafast electron microscopy and electron-based quantum optics, yet their direct coupling is forbidden in free space. Here, we use longitudinally polarized light on a thin membrane and show that the emerging focal fields can modulate the electron beam in a direct, coherent, and linear way, without the need for nanostructured materials or slanted interaction geometries. Also, we use vectorial polarizations to excite and probe three-dimensional nanophotonic near fields in metallic mesocrystals by coherent electron energy gain and loss. We find that longitudinal electric fields excite axial near fields in a direct way, while longitudinal magnetic fields excite oscillating ring currents via azimuthal electric fields. These possibilities enable the tilt-free, collinear generation of attosecond electron pulses or free-electron qubits and provide novel imaging modes in ultrafast electron microscopy and metamaterial tomography.
The authors' abstract, as published at the source. ACS Photonics, 2026 · DOI ↗
Continue with a free account
Ask the paper: 3 free questions a day about this paper; save it, get its citation, new summaries every day for your field. Takeaways are Premium.
Continue free on the webSign in with Google or Apple; no card needed. You come back to this paper.
On your phone:
Structural BiologyBiochemistry, Genetics and Molecular Biology