Control of the high-order harmonic generation by sculpting waveforms with chirp in solids

High Harmonic Generation from Laser-Induced Plasmas of Ni-Doped CsPbBr3 Nanocrystals: Implications for Extreme Ultraviolet Light Sources

“…In this study, we have chosen a DP duration of 35 fs because in the generation of higher-order harmonics, a shorter pulse duration leads to an increase in the cutoff and intensity of harmonics. Previously, researchers have demonstrated the effect of DP duration on the emission of harmonic for various solid materials, LIPs, and gas jets. ,− However, in the present report, we have mainly measured harmonics spectra at a 35 fs pulse duration; further, we could not precisely fine-tune the pulse duration in the experiment. Figure illustrates the harmonic spectra obtained from the LIPs of pristine CsPbBr 3 and Ni-doped CsPbBr 3 (0.1% Ni-doped, 0.08% Ni-doped, 0.05% Ni-doped, and 0.03% Ni-doped) 2D NCs at DP intensity I fs = 4.5 × 10 14 W cm –2 , and HP intensity I ps = 1.2 × 10 10 W cm –2 , I ns = 5.9 × 10 10 W cm –2 for (a) SCP, ps HP; (b) SCP, ns HP; (c) TCP, ps HP; and (d) TCP, ns HP.…”