Optical Modulation of Electron Beams in Free Space
- URL: http://arxiv.org/abs/2011.03884v1
- Date: Sun, 8 Nov 2020 01:15:21 GMT
- Title: Optical Modulation of Electron Beams in Free Space
- Authors: F. Javier Garc\'ia de Abajo and Andrea Kone\v{c}n\'a
- Abstract summary: We show that monochromatic optical fields focused in vacuum can be used to correct electron beam aberrations and produce selected focal shapes.
The required light intensities are attainable in currently available ultrafast electron microscope setups.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We exploit free-space interactions between electron beams and tailored light
fields to imprint on-demand phase profiles on the electron wave functions.
Through rigorous semiclassical theory involving a quantum description of the
electrons, we show that monochromatic optical fields focused in vacuum can be
used to correct electron beam aberrations and produce selected focal shapes.
Stimulated elastic Compton scattering is exploited to imprint the phase, which
is proportional to the integrated optical field intensity along the electron
path and depends on the transverse beam position. The required light
intensities are attainable in currently available ultrafast electron microscope
setups, thus opening the field of free-space optical manipulation of electron
beams.
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