Abstract
The x-ray spectra of a plasma produced by heating CO2 clusters with intense femtosecond laser pulses with λ=0.8 μm and λ=0.4 μm are investigated. Spatially resolved x-ray spectra of the cluster plasma are obtained. The observed characteristic features of the x-ray emission spectra show unequivocally that such a plasma contains quite a large relative number of ions (≃10−2–10−3) with energies of 0.1–1 MeV. The contour of the OVIII Lyα line is found to have characteristic features that are especially conspicuous when the clusters are heated with second-harmonic pulses. These features cannot be explained by any mechanisms known to the authors.
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Pis’ma Zh. Éksp. Teor. Fiz. 68, No. 6, 454–459 (25 September 1998)
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Dobosz, S., Schmidt, M., Perdrix, M. et al. Characteristic features of the x-ray spectra of a plasma produced by heating CO2 clusters by intense femtosecond laser pulses with λ=0.8 and 0.4 μm. Jetp Lett. 68, 485–491 (1998). https://doi.org/10.1134/1.567894
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DOI: https://doi.org/10.1134/1.567894