Figure 4

Harmonic spectra generated using TCP scheme in the LIPs of two ablated perovskites using NS HP. (a) HHG in MA₂CuCl₄ LIP. (b) HHG in MA₂CuBr₄ LIP. The TCP-induced spectra depending on the pulse duration and the sign of chirp are shown. Green filled profiles of harmonics correspond to the chirp-free 35 fs PP (Chirp-free, PD = 35 fs), red curves correspond to the positively chirped 70 fs PP (Chirp( +), PD = 70 fs), blue curves correspond to the negatively chirped 70 fs PP (Chirp(-), PD = 70 fs), black curves correspond to the positively chirped 130 fs PP (Chirp( +), PD = 130 fs), and purple curves correspond to the negatively chirped 130 fs PP (Chirp(-), PD = 130 fs).