Abstract: “We analyze the effect of spatial phase modulation using non-linear functions applied to singular warped beams to control their topological states and intensity distribution. Such beams are candidates for optical trapping and particle manipulation for their controllable pattern of intensities and singularities. We first simulate several kinds of warped beams to analyze their intensity profiles and propagation characteristics. Secondly, we experimentally validate the simulations and investigate the far-field profiles. By calculating the intensity gradients, we describe how these beams are qualified candidates for optical manipulation and trapping.”
Open Access
Publication: Photonics
Issue/Year: Photonics, Volume 8; Number 8; Pages 343; 2021
Authors: Sebastian Cremaschini Sebastian Cremaschini Dipartimento di Fisica e Astronomia “G. Galilei”, Università di Padova, Via Marzolo 8, 35131 Padova, Italy More by Sebastian Cremaschini Orcidhttps://orcid.org/0000-0002-6416-5782 , Alberto Cattelan, Davide Ferraro, Daniele Filippi, Filippo Marinello, Alessio Meggiolaro, Matteo Pierno, Cinzia Sada, Annamaria Zaltron*, Paolo Umari*, and Giampaolo Mistura
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