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Ultrafast Electron Dynamics at Cu(111): Response of an Electron Gas to Optical Excitation
Abstract
Time-resolved two-photon photoemission is used to directly investigate the electron dynamics at a Cu(111) surface with 60 fs laser pulses. We find that the time evolution of the photoexcited electron population in the first image state can be described only by solving the optical Bloch equations to properly account for coherence in the excitation process. Our experiments also provide evidence that the dynamics of photoexcited bulk electrons is strongly influenced by hot electron cascades and that the initial relaxation rates are in agreement with Fermi liquid theory.
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Cited by
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Aslam, U., Rao, V. G., Chavez, S., & Linic, S. (2018) · Nature Catalysis · doi:10.1038/s41929-018-0138-x · Cited by 868
Femtosecond time-resolved two-photon photoemission studies of electron dynamics in metals
Petek, H., & Ogawa, S. (1997) · Progress in Surface Science · doi:10.1016/s0079-6816(98)00002-1 · Cited by 730
Ultrafast dynamics of nonequilibrium electrons in metals under femtosecond laser irradiation
Rethfeld, B., Kaiser, A., Vicanek, M., & Simon, G. (2002) · Physical Review B · doi:10.1103/physrevb.65.214303 · Cited by 462
Decay of electronic excitations at metal surfaces
Echenique, P. M., Berndt, R., Chulkov, E. V., Fauster, T., Goldmann, A., & Höfer, U. (2004) · Surface Science Reports · doi:10.1016/j.surfrep.2004.02.002 · Cited by 438
Spectroscopy and Dynamics of Nanometer-Sized Noble Metal Particles
Hodak, J. H., Martini, I., & Hartland, G. V. (1998) · The Journal of Physical Chemistry B · doi:10.1021/jp9809787 · Cited by 349
Metadata
- Authors
- Hertel, T., Knoesel, E., Wolf, M., & Ertl, G.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1996-01-15
- Volume
- 76
- Issue
- 3
- Pages
- 535-538
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2054873510
- Cited by
- 371
- References
- 0
- FWCI
- 13.92
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Ultrafast Electron Dynamics at Cu(111): Response of an Electron Gas to Optical Excitation. https://app.cochat.ai/papers/10.1103/physrevlett.76.535
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- Hertel, T., Knoesel, E., Wolf, M., & Ertl, G. (1996). Ultrafast Electron Dynamics at Cu(111): Response of an Electron Gas to Optical Excitation. Physical Review Letters. https://doi.org/10.1103/physrevlett.76.535
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
