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Lucchini M, Castiglioni L, Kasmi L, et al. Light-Matter Interaction at Surfaces in the Spatiotemporal Limit of Macroscopic Models. Phys Rev Lett. 2015;115(13):137401doi: 10.1103/PhysRevLett.115.137401.
Lucchini, M., Castiglioni, L., Kasmi, L., Kliuiev, P., Ludwig, A., Greif, M., Osterwalder, J., Hengsberger, M., Gallmann, L., & Keller, U. (2015). Light-Matter Interaction at Surfaces in the Spatiotemporal Limit of Macroscopic Models. Physical review letters, 115(13), 137401. https://doi.org/10.1103/PhysRevLett.115.137401
Lucchini, M, et al. "Light-Matter Interaction at Surfaces in the Spatiotemporal Limit of Macroscopic Models." Physical review letters vol. 115,13 (2015): 137401. doi: https://doi.org/10.1103/PhysRevLett.115.137401
Lucchini M, Castiglioni L, Kasmi L, Kliuiev P, Ludwig A, Greif M, Osterwalder J, Hengsberger M, Gallmann L, Keller U. Light-Matter Interaction at Surfaces in the Spatiotemporal Limit of Macroscopic Models. Phys Rev Lett. 2015 Sep 25;115(13):137401. doi: 10.1103/PhysRevLett.115.137401. Epub 2015 Sep 22. PMID: 26451581.
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Phys Rev Lett. 2015 Sep 25;115(13):137401. doi: 10.1103/PhysRevLett.115.137401. Epub 2015 Sep 22.

Light-Matter Interaction at Surfaces in the Spatiotemporal Limit of Macroscopic Models.

Physical review letters

M Lucchini, L Castiglioni, L Kasmi, P Kliuiev, A Ludwig, M Greif, J Osterwalder, M Hengsberger, L Gallmann, U Keller

Affiliations

  1. Department of Physics, ETH Zurich, 8093 Zürich, Switzerland.
  2. Department of Physics, University of Zurich, 8057 Zürich, Switzerland.
  3. Institute of Applied Physics, University of Bern, 3012 Bern, Switzerland.

PMID: 26451581 DOI: 10.1103/PhysRevLett.115.137401

Abstract

What is the spatiotemporal limit of a macroscopic model that describes the optoelectronic interaction at the interface between different media? This fundamental question has become relevant for time-dependent photoemission from solid surfaces using probes that resolve attosecond electron dynamics on an atomic length scale. We address this fundamental question by investigating how ultrafast electron screening affects the infrared field distribution for a noble metal such as Cu(111) at the solid-vacuum interface. Attosecond photoemission delay measurements performed at different angles of incidence of the light allow us to study the detailed spatiotemporal dependence of the electromagnetic field distribution. Surprisingly, comparison with Monte Carlo semiclassical calculations reveals that the macroscopic Fresnel equations still properly describe the observed phase of the IR field on the Cu(111) surface on an atomic length and an attosecond time scale.

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