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Relativistic Doppler Effect: Universal Spectra and Zeptosecond Pulses

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Gordienko, S., Pukhov, A., Shorokhov, O., Baeva, T.·2004·Physical Review Letters

Abstract

We report on a numerical observation of the train of zeptosecond pulses produced by the reflection of a relativistically intense femtosecond laser pulse from the oscillating boundary of an overdense plasma because of the Doppler effect. These pulses promise to become unique experimental and technological tools since their length is of the order of the Bohr radius and the intensity is extremely high proportional, variant 10(19) W/cm(2). We present the physical mechanism, analytical theory, and direct particle-in-cell simulations. We show that the harmonic spectrum is universal: the intensity of nth harmonic scales as 1/n(p) for n<4gamma(2), where gamma is the largest gamma factor of the electron fluid boundary, and p=3 and p=5/2 for the broadband and quasimonochromatic laser pulses, respectively.

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Metadata

Authors
Gordienko, S., Pukhov, A., Shorokhov, O., & Baeva, T.
Venue
Physical Review Letters
Published
2004-09-10
Volume
93
Issue
11
Pages
115002-115002
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W1971442137
Cited by
251
References
0
FWCI
5.88
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Relativistic Doppler Effect: Universal Spectra and Zeptosecond Pulses. https://app.cochat.ai/papers/10.1103/physrevlett.93.115002
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Gordienko, S., Pukhov, A., Shorokhov, O., & Baeva, T. (2004). Relativistic Doppler Effect: Universal Spectra and Zeptosecond Pulses. Physical Review Letters. https://doi.org/10.1103/physrevlett.93.115002

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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.