title: Decoding divergent series in nonparaxial optics.
abstract: A theoretical analysis aimed at investigating the divergent character of perturbative series involved in the study of free-space nonparaxial propagation of vectorial optical beams is proposed. Our analysis predicts a factorial divergence for such series and provides a theoretical framework within which the results of recently published numerical experiments concerning nonparaxial propagation of vectorial Gaussian beams find a meaningful interpretation in terms of the decoding operated on such series by the Weniger transformation.
authors.affiliation: Dipartimento di Elettronica Applicata, Università Roma Tre, Rome, Italy. borghi@uniroma3.it
authors.forename: Riccardo
authors.initials: R
authors.lastname: Borghi
authors.forename: Franco
authors.initials: F
authors.lastname: Gori
authors.forename: Giorgio
authors.initials: G
authors.lastname: Guattari
authors.forename: Massimo
authors.initials: M
authors.lastname: Santarsiero