Multiphoton above-threshold ionization of atoms in intense laser fields
Thesis/Dissertation
·
OSTI ID:6285155
Above-Threshold Ionization (ATI) of atoms in a new phenomenon in intense field laser-atom interactions. The emergence of this new phenomenon challenges the established lowest-order perturbation theory in the theoretical study of multiphoton processes. In this thesis, a dressed-state perturbation theory is presented, which treats the dominant terms in the calculation of ATI cross sections non-perturbatively. The field influence on atomic energy levels is studied to give a quantitative measure of the validity of the lowest-order perturbation theory. The field influence on the measurement of the atomic ionization threshold and the photoelectron energy spectrum is discussed. In addition, a statistical model is proposed to study the photoelectronenergy spectrum.
- Research Organization:
- Johns Hopkins Univ., Baltimore, MD (USA)
- OSTI ID:
- 6285155
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experiments on ''above-threshold ionization'' of atomic hydrogen
Coulomb effects in multiphoton above-threshold ionization
Study of the interaction of atoms with strong laser fields
Journal Article
·
Tue Jul 01 00:00:00 EDT 1986
· Phys. Rev. A; (United States)
·
OSTI ID:5571775
Coulomb effects in multiphoton above-threshold ionization
Journal Article
·
Thu Feb 29 23:00:00 EST 1996
· Physical Review A
·
OSTI ID:279029
Study of the interaction of atoms with strong laser fields
Thesis/Dissertation
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:5771700