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Three-half harmonic generation in laser-plasma interaction: Evidence for plasmon propagation

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Il Nuovo Cimento D

Summary

Side emitted 3ω/2 radiation was studied by interacting 1.064 μm laser light with plasmas obtained from exploding thin foils. Both focusing (f/8) and collecting (f/7) optics were designed in order to reduce the instrumental bandwidth of the 3ω/2 spectrum. Time-resolved spectra and time-resolved images were obtained and analysed. All the observed spectral features, including the substantial lack of a «blue» component, the amount of red shift and bandwidth, are consistent with the Karttunen theory of half-integer harmonics generated in plasmas. This theory takes into account the propagation of ω/2 plasmons produced by «two plasmon decay» and their coupling with laser light.

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Author notes

  1. D. Giulietti

    Present address: Dipartimento di Fisica, Università di Pisa, Italia

  2. D. Batani

    Present address: ICF group, Dipartimento di Fisica, Università Statale di Milano, Italia

  3. L. Gizzi

    Present address: Blackett Laboratory, Imperial College, London, UK

  4. E. Schifano

    Present address: Ecole Polytechnique, LULI, Palaiseau, France

Authors and Affiliations

  1. Istituto di Fisica Atomica e Molecolare, via del Giardino, 7-56100, Pisa, Italia

    D. Giulietti, V. Biancalana, D. Batani, A. Giulietti, L. Gizzi, L. Nocera & E. Schifano

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  1. D. Giulietti
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  2. V. Biancalana
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  3. D. Batani
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Giulietti, D., Biancalana, V., Batani, D. et al. Three-half harmonic generation in laser-plasma interaction: Evidence for plasmon propagation. Il Nuovo Cimento D 13, 845–858 (1991). https://doi.org/10.1007/BF02457172

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  • DOI: https://doi.org/10.1007/BF02457172

PACS 52.50.Jm

PACS 52.35

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