Correlation-induced orbital angular momentum changes
Optics
2021-01-04 v1
Abstract
We demonstrate that the orbital angular momentum flux density of a paraxial light beam can change on propagation in free space. These changes are entirely due to the spatial coherence state of the source, and the effect is analogous to correlation-induced changes in the intensity, spectrum and polarization of a beam. The use of the source coherence state to control the width, shape, and transverse shifts of the OAM flux density is demonstrated with numerical examples.
Cite
@article{arxiv.2005.01667,
title = {Correlation-induced orbital angular momentum changes},
author = {Yongtao Zhang and Olga Korotkova and Yangjian Cai and Greg Gbur},
journal= {arXiv preprint arXiv:2005.01667},
year = {2021}
}