Figure 5: Phase streaks induced by the evolving index profile.
From: Single-shot tomographic movies of evolving light-velocity objects
Epu=0.7 μJ and projection angles are φ=1.0°, 27°, −25° (top row), and −65° and 68° (bottom). Vertical (horizontal) scales denote transverse (longitudinal) position of the pump-induced phase streak within the temporally stretched probe pulse profile. The right-most end of each streak corresponds to the entrance of the medium; xpr=
=0 is approximately the midpoint of the pump pulse propagation through the Kerr medium. The spectrometer slit was centred on the images that L2 projected at the spectrometer entrance. Colour bars give phase shift in rad.
