Abstract
Abstract We have designed and tested the combination of a high-resolution electron energy analyzer with two differently linear-polarized rare-gas discharge photon sources, which allow the experimental variation of the three spatial components of the exciting vector potential over a sufficiently wide range of light incidence angles. The whole spectrometer is intended to study the combined effects of surface optical properties and (squared) photoemission matrix elements. The final goal of our work is to extract reliable photoemission peak intensities from electron energy distribution curves and to compare them to calculated dipole strengths. Our first test results demonstrate the possibility to obtain excellent energy resolution (Δ E ≤10 meV), angle-resolution (Δ θ ≤0.4°) and sufficient electron countrates (0.1–10 kHz) of photoelectrons emitted by 93% linear-polarized light at a photon energy of ℏω =21.2 eV.
Published Version
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