Relativistic Electron Vortex Beams in a Laser Field

Pratul Bandyopadhyay, Banasri Basu, Debashree Chowdhury

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The orbital angular momentum Hall effect and the spin Hall effect of electron vortex beams (EVBs) have been studied for the EVBs interacting with a laser field. In the scenario of a paraxial beam, the cumulative effect of the orbit-orbit interaction of EVBs and laser fields drives the orbital Hall effect, which in turn produces a shift of the center of the beam from that of the field-free case towards the polarization axis of the photons. In addition, for nonparaxial beams one can also perceive a similar shift of the center of the beam owing to the spin Hall effect involving spin-orbit interaction. Our analysis suggests that the shift in the paraxial beams will always be larger than that in the nonparaxial beams.

Original languageEnglish
Article number194801
JournalPhysical Review Letters
Issue number19
StatePublished - 5 Nov 2015
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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