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The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

X-ray Pulses Approaching the Attosecond Frontier

Drescher, Markus, Hentschel, Michael, Kienberger, Reinhard, Tempea, Gabriel, Spielmann, Christian, Reider, Georg A., Corkum, Paul B., Krausz, Ferenc·2001·Science

Abstract

Single soft-x-ray pulses of ∼90–electron volt (eV) photon energy are produced by high-order harmonic generation with 7-femtosecond (fs), 770-nanometer (1.6 eV) laser pulses and are characterized by photoionizing krypton in the presence of the driver laser pulse. By detecting photoelectrons ejected perpendicularly to the laser polarization, broadening of the photoelectron spectrum due to absorption and emission of laser photons is suppressed, permitting the observation of a laser-induced downshift of the energy spectrum with sub-laser-cycle resolution in a cross correlation measurement. We measure isolated x-ray pulses of 1.8 (+0.7/−1.2) fs in duration, which are shorter than the oscillation cycle of the driving laser light (2.6 fs). Our techniques for generation and measurement offer sub-femtosecond resolution over a wide range of x-ray wavelengths, paving the way to experimental attosecond science. Tracing atomic processes evolving faster than the exciting light field is within reach.

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Metadata

Authors
Drescher, M., Hentschel, M., Kienberger, R., Tempea, G., Spielmann, C., Reider, G. A., Corkum, P. B., & Krausz, F.
Venue
Science
Published
2001-03-09
Volume
291
Issue
5510
Pages
1923-1927
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1968035612
Cited by
749
References
2
FWCI
36.77
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: X-ray Pulses Approaching the Attosecond Frontier. https://app.cochat.ai/papers/10.1126/science.1058561
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Drescher, M., Hentschel, M., Kienberger, R., Tempea, G., Spielmann, C., Reider, G. A., Corkum, P. B., & Krausz, F. (2001). X-ray Pulses Approaching the Attosecond Frontier. Science. https://doi.org/10.1126/science.1058561

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