title: Considerations on the electromagnetic flow in Airy beams based on the Gouy phase.
abstract: We reexamine the Gouy phase in ballistic Airy beams (AiBs). A physical interpretation of our analysis is derived in terms of the local phase velocity and the Poynting vector streamlines. Recent experiments employing AiBs are consistent with our results. We provide an approach which potentially applies to any finite-energy paraxial wave field that lacks a beam axis.
authors.affiliation: Department of Optics, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Spain. carlos.zapata@uv.es
authors.forename: Carlos J
authors.initials: CJ
authors.lastname: Zapata-Rodríguez
authors.forename: David
authors.initials: D
authors.lastname: Pastor
authors.forename: Juan J
authors.initials: JJ
authors.lastname: Miret
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D004574:Electromagnetic Fields; D008962:Models, Theoretical; D012542:Scattering, Radiation