Figure 3: Spatio-temporal focusing.
From: Spatio-temporal focusing of an ultrafast pulse through a multiply scattering medium
Reconstructed spatio-temporal intensities |Eout(t, y)|2 (a) before and (b) after compensation of the phase at y0=2.66 mm. An intense peak emerges from the background with a contrast ratio of 15. One-dimensional 'lineouts' at the location of this peak (projections onto walls) and integrated signal (top) show that the peak is focused in time (black) and localized in space (red). The temporal and spatial widths of the peak are the Fourier-limit pulse duration and the spatial phase correlation distance, respectively.
