Optical framed knots as information carriers.

Abstract:

:Modern beam shaping techniques have enabled the generation of optical fields displaying a wealth of structural features, which include three-dimensional topologies such as Möbius, ribbon strips and knots. However, unlike simpler types of structured light, the topological properties of these optical fields have hitherto remained more of a fundamental curiosity as opposed to a feature that can be applied in modern technologies. Due to their robustness against external perturbations, topological invariants in physical systems are increasingly being considered as a means to encode information. Hence, structured light with topological properties could potentially be used for such purposes. Here, we introduce the experimental realization of structures known as framed knots within optical polarization fields. We further develop a protocol in which the topological properties of framed knots are used in conjunction with prime factorization to encode information.

journal_name

Nat Commun

journal_title

Nature communications

authors

Larocque H,D'Errico A,Ferrer-Garcia MF,Carmi A,Cohen E,Karimi E

doi

10.1038/s41467-020-18792-z

subject

Has Abstract

pub_date

2020-10-09 00:00:00

pages

5119

issue

1

issn

2041-1723

pii

10.1038/s41467-020-18792-z

journal_volume

11

pub_type

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