Js. Liu et al., Modified hydrodynamic model and its application in the investigation of laser-cluster interactions - art. no. 033426, PHYS REV A, 6403(3), 2001, pp. 3426
By solving the Maxwell equations, an effective plasma dielectric constant i
s obtained to replace the quasistatic plasma dielectric constant derived fr
om the Drude model. In the vicinity of resonance absorption, the electron d
ensity and temperature undergo such a rapid change that the quasistatic die
lectric constant is no longer appropriate to describe the behavior of reson
ance absorption. Using this effective dielectric constant to modify the hyd
rodynamic model developed by Ditmire and co-workers, we studied the interac
tion between different-sized atom ic clusters and high-intensity laser puls
es of different wavelengths. Reasonable agreement between the calculated re
sults and published experimental results was found.