Design for light-based spherical aberration correction of ultrafast electron microscopes
arXiv:2501.05157 · doi:10.1364/OE.542930
Abstract
We theoretically demonstrate that ponderomotive interactions near the electron cross-over can be used for aberration correction in ultrafast electron microscopes. Highly magnified electron shadow images from SiN thin films are utilized to visualize the distortions induced by spherical aberrations. Our simulations of electron-light interactions indicate that spherical aberrations can be compensated resulting in an aberration free angle of \SI{8.1}{mrad}. For achieving the necessary light distribution, we use a gradient descent algorithm to optimize Zernike polynomials and shape the light beam into a modified Gaussian and Laguerre-Gaussian beam.
v1: AAM; licence: CC BY 4.0
References in corpus (26)
- Electromagnetic Angular Momentum
- Electromagnetic Force and Momentum
- Ultrafast transmission electron microscopy using a laser-driven field emitter: femtosecond resolution with a high coherence electron beam
- Compression of sub-relativistic space-charge-dominated electron bunches for single-shot femtosecond electron diffraction
- From attosecond to zeptosecond coherent control of free-electron wave functions using semi-infinite light fields
- Ultrafast Generation and Control of an Electron Vortex Beam via Chiral Plasmonic Near Fields
- Ponderomotive generation and detection of attosecond free-electron pulse trains
- Laser-Induced Skyrmion Writing and Erasing in an Ultrafast Cryo-Lorentz Transmission Electron Microscopy
- Integrated photonics enables continuous-beam electron phase modulation
- Cavity-mediated electron-photon pairs
- Optical Modulation of Electron Beams in Free Space
- Nanoscale mapping of ultrafast magnetization dynamics with femtosecond Lorentz microscopy
- Tunable photon-induced spatial modulation of free electrons
- Transverse Electron Beam Shaping with Light
- Electron Beam Aberration Correction Using Optical Near Fields
- Spherical aberration correction in a scanning transmission electron microscope using a sculpted foil
- Observation of the relativistic reversal of the ponderomotive potential
- Susceptibility to and correction of azimuthal aberrations in singular light beams
- Quantum Wavefront Shaping with a 48-element Programmable Phase Plate for Electrons
- Electron round lenses with negative spherical aberration by a tightly focused cylindrically polarized light beam
- Spatiotemporal Electron-Beam Focusing through Parallel Interactions with Shaped Optical Fields
- Inelastic Electron Scattering at a Single-Beam Structured Light Wave
- Properties of electron lenses produced by ponderomotive potential with Bessel and Laguerre-Gaussian beams
- Monochromatization of Electron Beams with Spatially and Temporally Modulated Optical Fields
- Electron vortex beams for chirality probing at the nanoscale
- Ultrafast Transverse Modulation of Free Electrons by Interaction with Shaped Optical Fields