Published online by Cambridge University Press: 15 February 2011
Picosecond laser pulse irradiation of single crystalline Si can produce severe damage, including amorphisation. Morphology changes are studied by means of optical and high-voltage-electron microscopy and are found to depend on energy fluence, surface orientation, and wavelength. The detailed analysis of the damage distributions and thresholds lead to the conclusion, that energy-confinement precedes the introduction of structural changes, which are formed by rapid quenching from the liquid state.