Abstract
Experimental evidence and theory on the head-on excitation of atoms by paraxial Laguerre–Gaussian beams revealed that the longitudinal component of the field has to be taken into account. Optical vortices are in fact a large family of fields, Laguerre–Gaussian being only one particular case. Here, we extend the previous study to a broader set of vortex fields. We demonstrate that, in general, paraxial optical vortices that have opposite orbital and spin angular momenta exhibit a longitudinal component that cannot be disregarded in the light–matter interaction.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Abdullah F. Alharbi, Andreas Lyras, and Vassilis E. Lembessis
Opt. Express 31(26) 43690-43697 (2023)
Leila Mashhadi and Gholamreza Shayeganrad
Opt. Express 32(7) 12127-12140 (2024)
K. Koksal, M. Babiker, V. E. Lembessis, and J. Yuan
J. Opt. Soc. Am. B 39(2) 459-466 (2022)