Abstract.
The high-order harmonic generation from boron plasma was studied using the longitudinal pump scheme. The harmonics up to the 57th order (λ=13.96 nm) were observed. The characteristics of plateau in the range of 15th to 57th harmonics were analyzed depending on fundamental radiation intensity and the saturation of harmonic cutoff was observed. The harmonic cutoff energy was restricted by the self-defocusing of femtosecond radiation. A comparison of longitudinal and orthogonal pump schemes of boron plasma excitation was presented.
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Ganeev, R., Suzuki, M., Baba, M. et al. Frequency conversion in laser-produced boron plasma using longitudinal pump scheme. Eur. Phys. J. D 37, 255–259 (2006). https://doi.org/10.1140/epjd/e2005-00307-2
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DOI: https://doi.org/10.1140/epjd/e2005-00307-2