6533b821fe1ef96bd127c0c7
RESEARCH PRODUCT
Photoelectron-holography using circularly polarized light
Andreas OelsnerGerhard H. Fechersubject
PhysicsAngular momentumRadiationScatteringHolographyElectronDichroismPhotoelectric effectCondensed Matter PhysicsKinetic energyAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionlawPhysics::Atomic and Molecular ClustersPhysics::Atomic PhysicsPhysical and Theoretical ChemistryAtomic physicsSpectroscopyCircular polarizationdescription
Abstract Circular dichroism in the angular distribution of photoelectrons (CDAD) is not only observed from aligned initial states, but also as a consequence of the scattering of photoelectrons at the surrounding atoms in a solid or an adsorbate. Using the analytical result for the CDAD, we show that it is an integral transformation of the product of the angular momentum of the emitted electron and the Fourier-transformed scattering potential of the surrounding atoms. Therefore, we interpret the CDAD pattern as photoelectron-hologram. The real space distribution of atoms can be reconstructed by an inverse integral transformation of the CDAD pattern, which carries the full phase-information. We show for the case of emission from s-states, that a CDAD pattern, taken at only one kinetic energy , can be used for a three-dimensional reconstruction of the real space distribution of the atoms with a reasonable z -resolution.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-06-01 | Journal of Electron Spectroscopy and Related Phenomena |