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.
Bibliographical noteFunding Information:
Funding: This work has been funded in part by CONICYT under grant FR-1160887 and FI-11160146, and by the Millennium Institute for Research in Optics (MIRO), Chile.
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.