Spin-to-Orbital Angular Momentum Conversion and Spin-Polarization Filtering in Electron Beam (Articolo in rivista)

Type
Label
  • Spin-to-Orbital Angular Momentum Conversion and Spin-Polarization Filtering in Electron Beam (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.108.044801 (literal)
Alternative label
  • Ebrahim Karimi,1 Lorenzo Marrucci,1,2,* Vincenzo Grillo,3,4 and Enrico Santamato1 (2012)
    Spin-to-Orbital Angular Momentum Conversion and Spin-Polarization Filtering in Electron Beam
    in Physical review letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ebrahim Karimi,1 Lorenzo Marrucci,1,2,* Vincenzo Grillo,3,4 and Enrico Santamato1 (literal)
Pagina inizio
  • 044801 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 108 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1Dipartimento di Scienze Fisiche, Universita` di Napoli ''Federico II,'' Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italy 2CNR-SPIN, Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italy 3CNR-Istituto Nanoscienze, Centro S3, Via G Campi 213/a, I-41125 Modena, Italy 4CNR-IMEM, Parco delle Scienze 37a, I-43100 Parma, Italy (literal)
Titolo
  • Spin-to-Orbital Angular Momentum Conversion and Spin-Polarization Filtering in Electron Beam (literal)
Abstract
  • We propose the design of a space-variantWien filter for electron beams that induces a spin half-turn and converts the corresponding spin angular momentum variation into orbital angular momentum of the beam itself by exploiting a geometrical phase arising in the spin manipulation. When applied to a spatially coherent input spin-polarized electron beam, such a device can generate an electron vortex beam, carrying orbital angular momentum. When applied to an unpolarized input beam, the proposed device, in combination with a suitable diffraction element, can act as a very effective spin-polarization filter. The same approach can also be applied to neutron or atom beams (literal)
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