Delay in Photoemission
Open accessAbstract
Defining Time-Zero: When a high-energy photon hits an atom and is absorbed, the result can be the excitation and emission of an electron. This photoemission, or photoelectric effect, is generally assumed to occur instantaneously, and represents the definition of “time-zero” in clocking such ultrafast events. Schultze et al. (p. 1658 , see the cover; see the Perspective by van der Hart ) use ultrafast spectroscopy, with light pulses on the time scale of several tens of attoseconds, to test this assumption directly. They excite neon atoms with 100 eV photons and find that there is a small (20-attosecond) time delay between the emission of electrons from the 2 s and 2 p orbitals of the atoms. These results should have implications in modeling electron dynamics occurring on ultrafast time scales.
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A series of recent experimental reports showed that we now have the ability to characterize an escaping photoelectron wavepacket and its interaction with the ionic core.
“A series of recent experimental reports [185][186][187][188][189][190][191][192][193] showed that we now have the ability to characterize an escaping photoelectron wavepacket and its interaction with the ionic core.”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [185]
Pump/probe schemes often use either single attosecond pulses with a rather intense infrared probe pulse or an attosecond pulse train with a weak infrared pulse.
“Pump/probe schemes often use either single attosecond pulses together with a rather intense infrared probe pulse [185,186,191] or an attosecond pulse train together with a weak infrared pulse [187-190, 192, 193].”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [185]
Photoionization can be studied by pump/probe schemes in combination with photoelectron spectroscopy.
“Photoionization can be studied by pump/probe schemes in combination with photoelectron spectroscopy [185][186][187][188][189][190][191][192][193].”
From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [185]
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- Authors
- Schultze, M., Fieß, M., Karpowicz, N., Gagnon, J., Korbman, M., Hofstetter, M., Neppl, S., Cavalieri, A. L., Komninos, Y., Mercouris, T., Nicolaides, C. A., Pazourek, R., Nagele, S., Feist, J., Burgdörfer, J., Azzeer, A. M., Ernstorfer, R., Kienberger, R., Kleineberg, U., Goulielmakis, E., Krausz, F., & Yakovlev, V. S.
- Affiliations
- Max Planck Institute of Quantum Optics (DE)
- Ludwig-Maximilians-Universität München (DE)
- Technical University of Munich (DE)
- National Hellenic Research Foundation (GR)
- TU Wien (AT)
- Harvard University (US)
- King Saud University (SA)
- Corresponding author
- Schultze, M.
- Yakovlev, V. S.
- ORCID
- Venue
- Science
- Published
- 2010-06-25
- Volume
- 328
- Issue
- 5986
- Pages
- 1658-1662
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2038329126
- Cited by
- 1,121
- References
- 30
- Citations by year
- 2026: 57 · 2025: 68 · 2024: 71 · 2023: 54 · 2022: 57 · 2021: 71 · 2020: 78 · 2019: 75 · 2018: 74 · 2017: 55 · 2016: 75 · 2015: 72 · 2014: 102 · 2013: 78 · 2012: 66
- FWCI
- 36.19
- Type
- journal article
- Language
- en
- Open access
- green
- mediatum.ub.tum.de
- Licence
- other-oa
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- National Hellenic Research Foundation Helios Repository (National Hellenic Research Foundation) (submittedVersion)
- The HKU Scholars Hub (University of Hong Kong) (submittedVersion)
- mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion, other-oa)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Molecular Physics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
- Keywords
- attosecond metrology, neon atom, 2p orbitals, electron correlation, photoionization
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