Fig. 4: Time dependence of optical properties.
From: Dynamic optical response of solids following 1-fs-scale photoinjection
a, The analysis of the silicon data. The positions of the magenta error bars and the red curve show the photoinjection-induced decrease of the half-cycle amplitudes in the measured and reconstructed waveforms, respectively. These data are juxtaposed with the imaginary part of the refractive index (black squares), evaluated using the Drude–Lorentz model. The positions of the light-blue error bars and the blue curve represent the change in the timing of the test field’s zero crossings in the measured and reconstructed waveforms, respectively. The black circles show the real part of the time-dependent refractive index. b, The same analysis applied to the fused-silica data. The horizontal axis in these plots is the time passed after the middle of the pump pulse. The intensity envelope of the pulse is shown by the green area.
