7 research outputs found
Explosive Boiling of Transparent Liquids on Absorbing Targets Heated by Short Laser Pulses
Explosive boiling induced by sub-nanosecond laser pulses is theoretically analyzed in the case of transparent liquids on metal targets. In this case the variation of boiling start times due to inhomogeneous distribution of laser intensity through the irradiation spot can be reduced up to laser pulse duration and registered explosive boiling pressure signals become less distorted. The results are compared with experimental investigations of photoacoustic (PA) signals induced in metal target under transparent liquid layer irradiated by laser pulses of about 100 ps duration and wavelength 532 nm
Current Profiles of Molecular Nanowires; DFT Green Function Representation
The Liouville-space Green function formalism is used to compute the current
density profile across a single molecule attached to electrodes. Time ordering
is maintained in real, physical, time, avoiding the use of artificial time
loops and backward propagations. Closed expressions for molecular currents,
which only require DFT calculations for the isolated molecule, are derived to
fourth order in the molecule/electrode coupling.Comment: 21 page