Figure 13
Relative variation of the transmission of a Si foil (thickness 100 nm) induced by an intense laser pump (pulse energy 25 µJ, wavelength 390 nm, length 130 fs), for different FEL probe wavelengths before (99.6 eV) and after (100.8 eV) the L2,3-edge (pulse length <100 fs). Solid gray lines are guides to the eye. |