Mimicking chiral light-matter interaction

Journal article

Publication Details

Author(s): Nechayev S, Banzer P
Journal: Physical Review B
Publication year: 2019
Volume: 99
Journal issue: 24
ISSN: 2469-9950


We demonstrate that achiral electric-dipole scatterers can mimic an interaction of light with chiral matter by generating far-field circular polarization upon scattering, even though the optical chirality of the incident field as well as that of the scattered light is zero. On the one hand, the presented effect originates from the fact that electric-dipole scatterers respond selectively only to the incident electric field, which eventually results in depolarization of the transmitted beam and in generation of far-field circular polarization. On the other hand, although the incident beam does not possess any optical chirality, it lacks reflection symmetry and therefore it is geometrically chiral. To experimentally demonstrate this effect, we utilize a cylindrical vector beam with spiral polarization and a spherical gold nanoparticle positioned on the optical axis-the axis of rotational symmetry of the system. Our experiment and a simple theoretical model address the fundamentals of duality symmetry in optics and chiral light-matter interactions, accentuating their richness and ubiquity yet in highly symmetric configurations.

FAU Authors / FAU Editors

Banzer, Peter Prof. Dr.
Professur für Experimentalphysik

External institutions with authors

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light

How to cite

Nechayev, S., & Banzer, P. (2019). Mimicking chiral light-matter interaction. Physical Review B, 99(24). https://dx.doi.org/10.1103/PhysRevB.99.241101

Nechayev, Sergey, and Peter Banzer. "Mimicking chiral light-matter interaction." Physical Review B 99.24 (2019).


Last updated on 2019-25-06 at 13:53