Dynamic Consequences of Optical Spin-Orbit Interaction

Abstract

When circularly polarized wave scatters off a sphere, the scattered field forms a vortex with spiraling energy flow. This is due to the transformation of spin angular momentum into orbital one. Here we demonstrate that during this scattering an anomalous force can be induced that acts in a direction perpendicular to the propagation of incident wave. The appearance of this lateral force is made possible by the presence of an interface in the vicinity of scattering object. Besides radiation pressure and tractor-beam pulling forces, this lateral force is another type of non-conservative force that can be produced with unstructured light beams.

10 pages, 3 figures

References in corpus (4)

• Optical alignment and spinning of laser-trapped microscopic particles
• Chiral nanophotonic waveguide interface based on spin-orbit coupling of light
• Transverse spin and momentum in two-wave interference
• Scattering of inhomogeneous circularly polarized optical field and mechanical manifestation of the internal energy flows

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• Chiral Quantum Optics
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• Lateral Casimir force on a rotating particle near a planar surface
• Optical binding via surface plasmon polariton interference
• Near-ground-state cooling of atoms optically trapped 300nm away from a hot surface
• Experimental demonstration of linear and spinning Janus dipoles for polarisation and wavelength selective near-field coupling
• Fictitious magnetic field gradients in optical microtraps as an experimental tool for interrogating and manipulating cold atoms
• Imaging and localizing individual atoms interfaced with a nanophotonic waveguide
• Giant Lateral Optical Forces on Rayleigh Particles near Hyperbolic and Extremely Anisotropic Metasurfaces
• Channeling of spontaneous emission from an atom into the fundamental and higher-order modes of a vacuum-clad ultrathin optical fiber
• Optical forces from near-field directionalities in planar structures
• Spontaneous emission of a two-level atom with an arbitrarily polarized electric dipole in front of a flat dielectric surface
• Repulsion of polarized particles from two-dimensional materials
• Optical Forces in Coupled Chiral Particles
• Optical Chirality of Time-Harmonic Wavefields for Classification of Scatterers
• Thermally limited force microscopy on optically trapped single metallic nanoparticles
• Subfemtonewton force fields measured with ergodic Brownian ensembles
• Fundamentals and model of resonance helicity and energy transfer between two magnetoelectric chiral particles
• Radiation forces and torques in optics and acoustics
• The dependence of evanescent wave polarization on the losses of guided optical modes
• Consistency of time averaged optical force laws for embedded chiral and achiral objects
• A transversely localized light in waveguide: the analytical solution and its potential applications
• Superlens induced loss-insensitive optical force
• Controllable spin-Hall and related effects of light in an atomic medium via coupling fields
• Orbital Motion From Optical Spin: The Extraordinary Momentum Of Circularly Polarized Light Beams