Weak Measurement Enhanced Spin Hall Effect of Light for Particle Displacement Sensing

Journal article


Publication Details

Author(s): Neugebauer M, Nechayev S, Vorndran M, Leuchs G, Banzer P
Journal: Nano Letters
Publication year: 2019
Volume: 19
Journal issue: 1
Pages range: 422-425
ISSN: 1530-6984
eISSN: 1530-6992


Abstract

A spherical nanoparticle can scatter tightly focused optical beams in a spin-segmented manner, meaning that the far field of the scattered light exhibits laterally separated left- and right-handed circularly polarized components. This effect, commonly referred to as giant spin Hall effect of light, strongly depends on the position of the scatterer in the focal volume. Here, a scheme that utilizes an optical weak measurement in a cylindrical polarization basis is put forward to drastically enhance the spin-segmentation and, therefore, the sensitivity to small displacements of a scatterer. In particular, we experimentally achieve a change of the spin-splitting signal of 5% per nanometer displacement.


FAU Authors / FAU Editors

Banzer, Peter Prof. Dr.
Professur für Experimentalphysik
Leuchs, Gerd Prof. Dr.
Lehrstuhl für Experimentalphysik (Optik)
Neugebauer, Martin
Lehrstuhl für Experimentalphysik (Optik)
Vorndran, Martin
Lehrstuhl für Photonische Technologien


External institutions with authors

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


How to cite

APA:
Neugebauer, M., Nechayev, S., Vorndran, M., Leuchs, G., & Banzer, P. (2019). Weak Measurement Enhanced Spin Hall Effect of Light for Particle Displacement Sensing. Nano Letters, 19(1), 422-425. https://dx.doi.org/10.1021/acs.nanolett.8b04219

MLA:
Neugebauer, Martin, et al. "Weak Measurement Enhanced Spin Hall Effect of Light for Particle Displacement Sensing." Nano Letters 19.1 (2019): 422-425.

BibTeX: 

Last updated on 2019-08-05 at 08:38