• High Power Laser Science and Engineering
  • Vol. 9, Issue 4, 04000e54 (2021)
Andrey Shaykin, Vladislav Ginzburg, Ivan Yakovlev, Anton Kochetkov, Alexey Kuzmin, Sergey Mironov, Ilya Shaikin, Sergey Stukachev, Vladimir Lozhkarev, Artem Prokhorov, and Efim Khazanov*
Author Affiliations
  • Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod603950, Russia
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    DOI: 10.1017/hpl.2021.40 Cite this Article Set citation alerts
    Andrey Shaykin, Vladislav Ginzburg, Ivan Yakovlev, Anton Kochetkov, Alexey Kuzmin, Sergey Mironov, Ilya Shaikin, Sergey Stukachev, Vladimir Lozhkarev, Artem Prokhorov, Efim Khazanov. Use of KDP crystal as a Kerr nonlinear medium for compressing PW laser pulses down to 10 fs[J]. High Power Laser Science and Engineering, 2021, 9(4): 04000e54 Copy Citation Text show less
    Curves for (a) αopt(B), (b) Fτ(B), and (c) Fi(B) for α = αopt for KDP (blue) and silica (red): FTL pulse at k3 ≠ 0 (solid curves) and k3 = 0 (dashed curves); non-Gaussian FTL pulse, the spectrum and autocorrelation function of which are presented in Figure 3(a) (dotted curves). FTL, Fourier-transform-limited.
    Fig. 1. Curves for (a) αopt(B), (b) Fτ(B), and (c) Fi(B) for α = αopt for KDP (blue) and silica (red): FTL pulse at k3 ≠ 0 (solid curves) and k3 = 0 (dashed curves); non-Gaussian FTL pulse, the spectrum and autocorrelation function of which are presented in Figure 3(a) (dotted curves). FTL, Fourier-transform-limited.
    Schematic of the experiment. CM, chirped mirror; GW, small-aperture glass wedge; AC, autocorrelator; S, spectrometer.
    Fig. 2. Schematic of the experiment. CM, chirped mirror; GW, small-aperture glass wedge; AC, autocorrelator; S, spectrometer.
    Measured input (blue) and output (red) spectra and ACF for two typical shots: (a) B = 13, τin = 67 fs, τout = 10.9 fs and (b) B = 14, τin = 57 fs, τout = 10.1 fs.
    Fig. 3. Measured input (blue) and output (red) spectra and ACF for two typical shots: (a) B = 13, τin = 67 fs, τout = 10.9 fs and (b) B = 14, τin = 57 fs, τout = 10.1 fs.
    Experimental minimal compressed pulse duration τout for KDP (L = 4 mm), silica (L = 5 mm), and silica (L = 3 mm[15" target="_self" style="display: inline;">15,20" target="_self" style="display: inline;">20]) for two ranges of B values. The curves are plotted to make the figure more illustrative.
    Fig. 4. Experimental minimal compressed pulse duration τout for KDP (L = 4 mm), silica (L = 5 mm), and silica (L = 3 mm[15,20]) for two ranges of B values. The curves are plotted to make the figure more illustrative.
    Output pulse duration τout (blue) and pulse compression factor Fτ = τin/τout (red) at α = −200 fs2; τin = 55, …, 67 fs.
    Fig. 5. Output pulse duration τout (blue) and pulse compression factor Fτ = τinout (red) at α = −200 fs2; τin = 55, …, 67 fs.
    ParameterUnitsKDPSilica
    Lmm45
    k2fs2/mm11.327.7
    D0.010.037
    k3fs3/mm123.7106
    T0.00220.0023
    n210–16 cm/W4.62.45
    λ0nm910
    TFfs61
    N20.1
    Table 1. The parameters of numerical modeling.
    Andrey Shaykin, Vladislav Ginzburg, Ivan Yakovlev, Anton Kochetkov, Alexey Kuzmin, Sergey Mironov, Ilya Shaikin, Sergey Stukachev, Vladimir Lozhkarev, Artem Prokhorov, Efim Khazanov. Use of KDP crystal as a Kerr nonlinear medium for compressing PW laser pulses down to 10 fs[J]. High Power Laser Science and Engineering, 2021, 9(4): 04000e54
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