On the transfer of optical orbital angular momentum to matter
arXiv:2101.10660
Abstract
The prevailing notion is that the orbital angular momentum (OAM) of an optical vortex can only be transferred to the internal degrees of freedom (i.e. electronic motion) of materials through electric quadrupole and higher-order multipole interactions. Here it is highlighted how this is an artefact of the paraxial approximation and that optical OAM can be transferred to electronic motion via dipole transitions under the correct experimental conditions where non-paraxial, longitudinal fields must be accounted for.
References in corpus (12)
- Quantized Rotation of Atoms From Photons with Orbital Angular Momentum
- Conservation of the spin and orbital angular momenta in electromagnetism
- Chirality and angular momentum in optical radiation
- Off-axis excitation of hydrogenlike atoms by twisted photons
- Angular Momentum Transfer in Interaction of Laguerre-Gaussian Beams with Atoms and Molecules
- Selective excitation of multipolar spoof plasmons using orbital angular momentum of light
- Interaction of electron vortices and optical vortices with matter and processes of orbital angular momentum exchange
- Mapping of focused Laguerre-Gauss beams: The interplay between spin and orbital angular momentum and its dependence on detector characteristics
- Interaction of atom with non-paraxial Laguerre-Gaussian beam:Forming superposition of vortex states in Bose-Einstein condensates
- Negative experimental evidence for magneto-orbital dichroism - supplemental information
- Orbital angular momentum dichroism caused by the interaction of electric-magnetic dipole moments in chiral metal nanoparticles
- Quadrupole absorption rate and orbital angular momentum transfer for atoms in optical vortices