Electron Correlation Effects in Nonresonant Multiphoton Ionization Processes

Electron Correlation Effects in Nonresonant Multiphoton Ionization Processes

The role of electron correlations in nonresonant multiphoton processes of atoms is presented. The evidence for the validity of a lowest order perturbation theory (LOPT) approach for the laser field in the case of nonresonant processes is sketched. The growing consensus for a LOPT interpretation of even the multiply-charged ion spectra obtained with high intensity lasers is reviewed. Finally, a ...

Application of Hadamard transform to gas chromatography/nonresonant multiphoton ionization/time-of-flight mass spectrometry.

The technique of Hadamard transform was successfully coupled with GC/nonresonant multiphoton ionization/TOFMS, for the first time. 1,4-Dichlorobenzene and the fourth harmonic generation (266 nm) of a Nd:YAG laser were employed as a model sample and an ionization laser, respectively. A Hadamard-injector coupled with a capillary-based supersonic jet nozzle (capillary-injector) was also developed ...

Variational calculation of multiphoton ionization processes for the H atom.

Multiphoton Ionization and Oxidation Processes of Mg(NH3)n

Metal ions play important roles in chemical and biological systems and its oxidation and reduction processes trigger many catalytic reactions in solution. In these systems, the solvation of metal ions is a key issue to understand the chemical behavior. In order to clarify the microscopic aspect of solvation process under a limited number of solvent molecules, solvated metal ion clusters are con...

Subcycle control of electron-electron correlation in double ionization.

Double ionization of neon with orthogonally polarized two-color (OTC) laser fields is investigated using coincidence momentum imaging. We show that the two-electron emission dynamics in nonsequential double ionization can be controlled by tuning the subcycle shape of the electric field of the OTC pulses. We demonstrate experimentally switching from correlated to anticorrelated two-electron emis...