Stacked Bar Plot from Scientific Research

Upper panel: harmonic yield enhancement factor for a BSV versus coherent pump for the same mean intensity (~2 TW cm −2 ). We show experimental (solid-edged bars) and simulated (dashed-edged bars) factors. Lower panel: the spectrum of harmonics generated in a 6 μm x-cut doped LN crystal by a BSV (solid line) and by coherent radiation (dashed line). The photon energies of the sixth and the seventh harmonics exceed the direct energy bandgap of doped LN. a.u., arbitrary units.

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