Multi-twist polarization ribbon topologies in highly-confined optical fields

Journal article

Publication Details

Author(s): Bauer T, Banzer P, Bouchard F, Orlov S, Marrucci L, Santamato E, Boyd RW, Karimi E, Leuchs G
Journal: New Journal of Physics
Publication year: 2019
Volume: 21
ISSN: 1367-2630


Electromagnetic plane waves, solutions to Maxwell's equations, are said to be 'transverse' in vacuum. Namely, the waves' oscillatory electric and magnetic fields are confined within a plane transverse to the waves' propagation direction. Under tight-focusing conditions however, the field can exhibit longitudinal electric or magnetic components, transverse spin angular momentum, or non-trivial topologies such as Mobius strips. Here, we show that when a suitably spatially structured beam is tightly focused, a three-dimensional polarization topology in the form of a ribbon with two full twists appears in the focal volume. We study experimentally the stability and dynamics of the observed polarization ribbon by exploring its topological structure for various radii upon focusing and for different propagation planes.

FAU Authors / FAU Editors

Banzer, Peter Prof. Dr.
Professur für Experimentalphysik
Bauer, Thomas
Lehrstuhl für Experimentalphysik (Optik)
Leuchs, Gerd Prof. Dr.
Lehrstuhl für Experimentalphysik (Optik)

External institutions with authors

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
State research institute Center for Physical Sciences and Technology
Università degli Studi di Napoli Federico II
University of Ottawa

How to cite

Bauer, T., Banzer, P., Bouchard, F., Orlov, S., Marrucci, L., Santamato, E.,... Leuchs, G. (2019). Multi-twist polarization ribbon topologies in highly-confined optical fields. New Journal of Physics, 21.

Bauer, Thomas, et al. "Multi-twist polarization ribbon topologies in highly-confined optical fields." New Journal of Physics 21 (2019).


Last updated on 2019-28-05 at 14:53