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Proceedings Paper

Angular momenta and spin-orbit interaction for nonparaxial beams
Author(s): Miguel A. Alonso; Konstantin Bliokh
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Paper Abstract

It is well known that, for any monochromatic field, the spatial extent of the focus has a lower bound dependent on the field's directional spread. The influence that the orbital angular momentum and, for vector fields, the (spin) angular momentum due to polarization have on this lower bound are studied here for fields not constrained by the paraxial approximation. A ray-optical interpretation of the effect of orbital and spin angular momentum on the spatial spread is provided for the case of Bessel beams.

Paper Details

Date Published: 3 November 2011
PDF: 9 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 80116H (3 November 2011); doi: 10.1117/12.903380
Show Author Affiliations
Miguel A. Alonso, The Institute of Optics, Univ. of Rochester (United States)
Konstantin Bliokh, National Univ. of Ireland, Galway (Ireland)


Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World
Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Ramón Rodríguez-Vera; Rufino Díaz-Uribe, Editor(s)

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