Nondipole photoelectron momentum shifts in strong-field ionization with mid-infrared laser pulses of long duration

Control of strong-field ionization with two-color laser pulses

Ionization Study of Isomeric Molecules in Strong-field Laser Pulses

Through the use of the technique of time-of-flight mass spectroscopy, we obtain strong-field ionization yields for randomly oriented 1,2-dichloroethylene (1,2-DCE) (C2H2Cl2) and 2-butene (C4H8). We are interested in studying the effect of conformal structure in strong-field ionization and, in particular, the role of molecular polarity. That is, we can perform strong-field ionization studies in ...

Molecular Double Ionization Using Strong Field Few-Cycle Laser Pulses.

We study strong field double ionization of a series of organic molecules by making use of coincidence detection of fragment ions. We measure the double ionization yield as a function of pulse duration, intensity, polarization, and molecular conjugation. For conjugated molecules we find strong enhancement in the double ionization rate over what one would expect on the basis of tunneling or multi...

Ionization Time and Exit Momentum in Strong-Field Tunnel Ionization.

Tunnel ionization belongs to the fundamental processes of atomic physics. The so-called two-step model, which describes the ionization as instantaneous tunneling at the electric field maximum and classical motion afterwards with zero exit momentum, is commonly employed to describe tunnel ionization in adiabatic regimes. In this contribution, we show by solving numerically the time-dependent Sch...

Double ionization of benzene interacting with strong Ti:sapphire laser pulses

Multiphoton/tunnel ionization of benzene, interacting with strong Ti:sapphire laser pulses, to doubly charged ions was studied. In contrast to previously published results on multiphoton/tunnel ionization of atoms and molecules, it was demonstrated that double ionization of benzene occurs mainly through non-sequential processes.