Axial superlocalization with vortex beams
Quantum Physics
2021-03-09 v1 Optics
Abstract
Improving axial resolution is of paramount importance for three-dimensional optical imaging systems. Here, we investigate the ultimate precision in axial localization using vortex beams. For Laguerre-Gauss beams, this limit can be achieved with just an intensity scan. The same is not true for superpositions of Laguerre-Gauss beams, in particular for those with intensity profiles that rotate on defocusing. Microscopy methods based on rotating vortex beams may thus benefit from replacing traditional intensity sensors with advanced mode-sorting techniques.
Cite
@article{arxiv.2103.04170,
title = {Axial superlocalization with vortex beams},
author = {D. Koutny and Z. Hradil and J. Rehacek and L. L. Sanchez-Soto},
journal= {arXiv preprint arXiv:2103.04170},
year = {2021}
}
Comments
10 pages, 4 figures. To appear in Quantum Science and Technology