A comprehensive model of ultrafast laser-induced plasma generation intended for coupling with pulse propagation simulations in transparent solids is introduced. It simultaneously accounts for the changing spectrum of a propagating ultrashort laser pulse while coupling to the evolution of the energy-resolved nonequilibrium free-carrier distribution. The presented results indicate that strong pulse chirps lead to ionization dynamics that are not captured by the standard monochromatic treatment of laser-induced plasma formation. These results have strong implications for ultrafast laser-solid applications that depend on ionization in a strong nonlinear focus.
Physical Review B
Digital Object Identifier (DOI)
Gulley, Jeremy R. and Lanier, Thomas E., "Model for Ultrashort Laser-pulse Induced Ionization Dynamics in Transparent Solids" (2014). Faculty Publications. 3832.