Calculation of vibrational preionization in H2 by multichannel quantum defect theory: Total and partial cross sections and photoelectron angular distributions

1981 ◽  
Vol 74 (6) ◽  
pp. 3388-3399 ◽  
Author(s):  
M. Raoult ◽  
Ch. Jungen
Keyword(s):  
Cross Sections ◽  
Quantum Defect ◽  
Angular Distributions ◽  
Quantum Defect Theory ◽  
Photoelectron Angular Distributions

scholarly journals Photoelectron Angular Distributions of Nonresonant Two-Photon Atomic Ionization Near Nonlinear Cooper Minima

Atoms ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 54
Author(s):  
Jiri Hofbrucker ◽  
Latifeh Eiri ◽  
Andrey V. Volotka ◽  
Stephan Fritzsche
Keyword(s):  
Cross Sections ◽  
Incident Light ◽  
Angular Distributions ◽  
Two Photon ◽  
Atomic Ionization ◽  
Independent Particle ◽  
Photon Ionization ◽  
Ionization Cross Sections ◽  
Photoelectron Angular Distributions ◽  
Asymmetry Parameters

Photoelectron angular distributions of the two-photon ionization of neutral atoms are theoretically investigated. Numerical calculations of two-photon ionization cross sections and asymmetry parameters are carried out within the independent-particle approximation and relativistic second-order perturbation theory. The dependence of the asymmetry parameters on the polarization and energy of the incident light as well as on the angular momentum properties of the ionized electron are investigated. While dynamic variations of the angular distributions at photon energies near intermediate level resonances are expected, we demonstrate that equally strong variations occur near the nonlinear Cooper minimum. The described phenomena is demonstrated on the example of two-photon ionization of magnesium atom.

Sign in / Sign up

Export Citation Format

Share Document