2015/10/31 by Pratul Bandyopadhyay, Banasri Basu, Debashree Chowdhury · 20 citations
Physics and Astronomy · #Angular momentum #Atomic physics #Beam (structure) #Electron #Field (mathematics) #Laser-Matter Interactions and Applications #Optics #Orbital Angular Momentum in Optics #Paraxial approximation #Photon #Physics #Polarization (electrochemistry) #Quantum electrodynamics #Quantum mechanics #Quantum optics and atomic interactions #Spin (aerodynamics) #Spin Hall effect #Spin polarization #Vortex #physics.optics #physics.plasm-ph #quant-ph
paper · pdf · doi:10.1103/physrevlett.115.194801
published in Physical Review Letters 115(19), 194801 (American Physical Society) · 5 pages. arXiv admin note: text overlap with arXiv:1311.7338
openalex publication_date 2015/11/05 · arxiv created 2015/12/05 · arxiv updated 2015/12/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.