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Light-matter interaction at surfaces in the spatiotemporal limit of macroscopic models

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.

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.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > General Physics and Astronomy
Language:English
Date:2015
Deposited On:10 Nov 2015 14:43
Last Modified:12 Feb 2025 02:40
Publisher:American Physical Society
ISSN:0031-9007
OA Status:Green
Publisher DOI:https://doi.org/10.1103/PhysRevLett.115.137401
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