Effect of two-center interference on molecular ionization in multiphoton ionization regime

Multiphoton Ionization of Atoms

s tepwise process v i a s i n g l y charged ions . T h i s depends on t h e l a s e r i n t e n s i t y and t h e photon energy. The b a s i c i n t e r a c t i o n processes i n v o l v e d a r e cons ide rab l y more compl ica ted than f o r one-e lec t ron atoms. A new theoret i c a l model has t o be developed t o t ake i n t o account e l e c t r o n c o r r e l a t i o n e f f e c t s . F...

Double multiphoton ionization of a model atom

A direct solution of the time-dependent Schrödinger equation ~TDSE! for a two-electron model atom in a strong electromagnetic field is used to extract probabilities for both single and double electron ionization. For three-photon ionization at a moderately strong intensity, the TDSE calculations find single ionization at 62%, single ionization with excitation at 10%, and double ionization at 3%...

Lippmann-Schwinger description of multiphoton ionization

Abstract We outline a formalism and develop a computational procedure to treat the process of multiphoton ionization (MPI) of atomic targets in strong laser fields. We treat the MPI process nonperturbatively as a decay phenomenon by solving a coupled set of the integral Lippmann-Schwinger equations. As basic building blocks of the theory we use a complete set of field-free atomic states, discre...

Analysis of multiphoton ionization of metal atoms in the saturation regime using subpicosecond KrF laser pulses

Analysis of multiphoton ionization of metal atoms in the saturation regime using subpicosecond KrF laser pulses" (1998). C. Singly and multiply charged ion yield curves are reported for resonant and nonresonant two-photon-ionization processes for a collection of 31 metal atoms. The atoms are created by sputtering from a solid target using an Ar-ion gun. Single and multiple ionization of these a...

Infrared Resonance Enhanced Multiphoton Ionization of Fullerenes