title: Lateral spin transport in paraxial beams of light.
abstract: We investigate the lateral transport of (longitudinal) spin angular momentum in a special polarization tailored light beam composed of a superposition of a y-polarized zero-order and an x-polarized first-order Hermite-Gaussian mode. This phenomenon is linked to the relative Gouy phase shift between the individual modes upon propagation, but can also be interpreted as a geometric phase effect. Experimentally, we demonstrate the implementation of such a mode and measure the spin density upon propagation.
authors.forename: Martin
authors.initials: M
authors.lastname: Neugebauer
authors.forename: Simon
authors.initials: S
authors.lastname: Grosche
authors.forename: Sergej
authors.initials: S
authors.lastname: Rothau
authors.forename: Gerd
authors.initials: G
authors.lastname: Leuchs
authors.forename: Peter
authors.initials: P
authors.lastname: Banzer