Fundamentals of Laser Interactions II [electronic resource] : Proceedings of the Fourth Meeting on Laser Phenomena Held at the Bundessportheim in Obergurgl, Austria 26 February – 4 March 1989 / edited by F. Ehlotzky.

Resonance multiphoton ionization under strong fields -- On the Problem of the “New” structure in multiphoton ionization introduced by short-pulse high intensity lasers -- Resonant multiphoton ionization of xenon and atomic hydrogen in intense sub-ps-laser pulses -- Multiphoton detachment from negative ions -- Multiphoton processes in intense laser fields -- Harmonic generation in rare gases at high laser intensity -- Ionization of atoms by an intense Co2 laser -- Studies of strong-field effects in multiphoton subpicosecond excited plasmas: Soft X-ray fluorescence and propagation -- Theoretical aspects of multiphoton ionization and harmonic generation -- Eigenchannel r-matrix calculation of photoionisation processes in strontium -- Resonant multiphoton excitation of autoionizing rydberg states and planetary atoms -- Electron Correlations in Time and Space -- Correlations in multiply excited atoms -- Strong field coheimce effects in the processes of photoionization from rydberg levels -- Observation of electronic wave packets with short laser pulses -- Many photon absorption in a near-classical regime -- Localization properties of rydberg atoms in the presence of noisy microwave fields -- Diamagnetism of the Hydrogen Atom in the Quasi-Landau-Regime -- Atomic interactions in superintense, high-frequency laser fields -- Photoionization and dissociation of the triatomic hydrogen molecule -- Multiphoton ionisation of xenon with tunable subpicosecond laser pulses -- Role of counter-rotating wave dynamics in near-threshold photoionisation of atomic hydrogen -- Laser-assisted electron-ion recombination and high-frequency generation -- Multiphoton ionization of hydrogen induced by two strong laser fields -- Energy spectrum of photoelectrons produced by picosecond laser induced surface multiphoton photoeffect -- Hydrogen atom in a strong radiation field: Nonperturbative analytic solutions -- Laser excitation of stark-induced resonances -- Two-photon ionisation of rare-gas atoms: An application of the relativistic time-dependent dirac-fock theory -- Diagrammatic perturbation theory for a two-level system in an intense light pulse -- Microwave ionization of alkali rydberg atoms -- Autoionization of large-1 rydberg states -- Fractallike structures and the strongly kicked H-atom -- (e,2e) Collisions in the presence of a laser field -- Atomic deformation and AC-Stark shifts of H under extreme radiation conditions -- Collisional treatment of multiphoton dissociation of small molecules in strong laser fields -- Autoionization of rydberg states in H2 induced by a doubly excited state -- Autoionization and fragmentation of Na2 studied by femtosecond laser pulses.

At this Obergurgl seminar, theoreticians and experimentalists discussed recent developments in laser interactions. This volume contains the texts of invited lectures and abstracts of contributed papers. The main topics discussed are: * multiphoton ionization * above-threshold ionization * collisions in strong fields * atoms in intense fields * chaos in radiative interactions * electron correlations in multiphoton processes * Rydberg atoms in external fields * other laser interactions. Thus a broad and up-to-date account of laser interactions is given which will be of interest to scientists, engineers and graduate students.