Fig. 3: THz field dependence of magnonic multiplication.
From: Extreme terahertz magnon multiplication induced by resonant magnetic pulse pairs
a–f Magnonic multiplication peak amplitudes as a function of THz fields by recording spectral signals ENL(ωt, τ) (Fig. 1e) at frequencies of 0, 1, 2, 3, 4, 5ωAF and inter-pulse delay τ = 4.8 ps. Solid lines are power-law fitting of the experimental data (markers). The error bars marked in a–f are obtained by averaging background noise following the same data taking protocol and fall within the marker sizes for the lower orders. g ENL(ωt, τ) spectra at fixed inter-pulse delay τ = 4.8 ps for 100% (purple line), 70% (green line), and 50% (orange line) of THz field excitations. h Corresponding single pulse spectra E2(ωt) at the same field strengths.
