Аннотация:Pulsed laser evaporation of the foam graphite samples with bulk density 0.7 g/cm3 were studied at power density range of 0.006-2.5 GW/cm2 by optoacoustic spectroscopy, scanning electron microscopy and time-of-flight mass spectroscopy of primary ions. Dependencies of crater depth per laser pulse, internal thermoacoustic and external recoil pressure pulse amplitudes, vapor composition on laser power density were determined and explosive surface layer modification was observed at different power density values at the same range.