Complete temporal characterization of asymmetric pulse compression in a laser wakefield

J. Schreiber*, C. Bellei, S. P.D. Mangles, C. Kamperidis, S. Kneip, S. R. Nagel, C. A.J. Palmer, P. P. Rajeev, M. J.V. Streeter, Z. Najmudin

*Corresponding author for this work

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Abstract

We present complete experimental characterization of the temporal shape of an intense ultrashort 200-TW laser pulse driving a laser wakefield. The phase of the pulse was uniquely measured by using (second-order) frequency-resolved optical gating. The pulses are asymmetrically compressed and exhibit a positive chirp consistent with the expected asymmetric self-phase-modulation due to photon acceleration or deceleration in a relativistic plasma wave. The measured pulse duration decreases linearly with increasing length and density of the plasma, in quantitative agreement with the intensity-dependent group velocity variation in the plasma wave.

Original languageEnglish
Article number235003
JournalPhysical Review Letters
Volume105
Issue number23
DOIs
Publication statusPublished - 02 Dec 2010
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Schreiber, J., Bellei, C., Mangles, S. P. D., Kamperidis, C., Kneip, S., Nagel, S. R., Palmer, C. A. J., Rajeev, P. P., Streeter, M. J. V., & Najmudin, Z. (2010). Complete temporal characterization of asymmetric pulse compression in a laser wakefield. Physical Review Letters, 105(23), [235003]. https://doi.org/10.1103/PhysRevLett.105.235003