We investigate the validity of the Boltzmann equation by directly comparing its solution with the ensemble averaged Maxwell solution for a system of randomly arranged plane parallel dielectric layers. We show how the calculation of the usual Boltzmann scattering coefficient from microscopic parameters can be improved to permit a better agreement with the exact Maxwell data.
We discuss how a spectral-domain method in combination with a split-operator technique can be used to calculate exact solutions of the time-dependent Maxwell's equations. We apply this technique to study the propagation of a light pulse through an inhomogeneous medium consisting of multiple random scatterers. We investigate the validity of the Boltzmann equation by directly comparing its solution with the ensemble averaged Maxwell solution.
We discuss how a spectral-domain method in combination with a split-operator technique can be used to calculate exact solutions of the time-dependent Maxwell equations. We apply this technique to study the propagation of a light pulse through an inhomogeneous medium consisting of practically arbitrarily shaped dielectric and metallic materials.
Atomic stabilization, the suppression of ionization accompanied by electron localization for increasing laser intensities, was one of the recent predictions for atoms exposed to very intense laser pulses. We discuss a fine structure on such an overall trend of stabilization. We describe how the ionization suppression may be reversed as the intensity is increased slightly. This kind of reversal of the ionization trend takes place repeatedly. We study such reversal of ionization as a function of both laser intensity or frequency. We attribute is origin to the interference of the ionizing wave initiated from various parts of the laser dressed atom.
Intense laser-atom interaction is modeled by placing an atom in a classical electromagnetic field. Computer simulations show new atomic responses to increasing laser intensities, among them are suppression of ionization and localization of the electron.
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