TY - JOUR
T1 - Relativistic Electron Vortex Beams in a Laser Field
AU - Bandyopadhyay, Pratul
AU - Basu, Banasri
AU - Chowdhury, Debashree
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/11/5
Y1 - 2015/11/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84946780786&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.115.194801
DO - 10.1103/PhysRevLett.115.194801
M3 - Article
AN - SCOPUS:84946780786
SN - 0031-9007
VL - 115
JO - Physical Review Letters
JF - Physical Review Letters
IS - 19
M1 - 194801
ER -