Extracting generalized multiphoton ionization cross-sections from nonperturbative time-dependent calculations: An application in positronium

2000 ◽  
Vol 10 (1) ◽  
pp. 67-79 ◽  
Author(s):  
L.B. Madsen ◽  
L.A.A. Nikolopoulos ◽  
P. Lambropoulos
Keyword(s):  
Cross Sections ◽  
Multiphoton Ionization ◽  
Time Dependent ◽  
Ionization Cross ◽  
Ionization Cross Sections

scholarly journals Generalized multiphoton-ionization cross sections of the rare gases for 500-fs, 248.6-nm pulses

1998 ◽  
Vol 57 (1) ◽  
pp. 392-400 ◽  
Author(s):  
C. J. G. J. Uiterwaal ◽  
D. Xenakis ◽  
D. Charalambidis ◽  
P. Maragakis ◽  
H. Schröder ◽  
...  
Keyword(s):  
Cross Sections ◽  
Multiphoton Ionization ◽  
Rare Gases ◽  
Ionization Cross ◽  
Ionization Cross Sections

Direct Measurements of Multiphoton Ionization Cross-Sections in Various Gases

2018 ◽  
Author(s):  
Animesh Sharma ◽  
Mikhail Slipchenko ◽  
Mikhail N. Shneider ◽  
Kazi Arafat Rahman ◽  
Alexey Shashurin
Keyword(s):  
Cross Sections ◽  
Multiphoton Ionization ◽  
Ionization Cross ◽  
Direct Measurements ◽  
Ionization Cross Sections

Polarization dependence of resonant multiphoton ionization in atomic mercury

1984 ◽  
Vol 62 (5) ◽  
pp. 419-430
Author(s):  
F. W. Dalby ◽  
M. H. L. Pryce ◽  
J. H. Sanders
Keyword(s):  
Excited States ◽  
Cross Sections ◽  
Multiphoton Ionization ◽  
Polarization Dependence ◽  
Ionization Cross ◽  
Polarization Dependences ◽  
Ionization Cross Sections ◽  
Theory And Experiment ◽  
Atomic Mercury ◽  
Good Agreement

The polarization dependences of a number of resonant multiphoton ionizations in atomic Hg have been studied experimentally and theoretically. Good agreement between theory and experiment is found from which quantitive information about relative ionization cross sections from excited states has been deduced.

Correction: Direct Measurements of Multiphoton Ionization Cross-Sections in Various Gases

2018 ◽  
Author(s):  
Animesh Sharma ◽  
Mikhail Slipchenko ◽  
Mikhail N. Shneider ◽  
Kazi Arafat Rahman ◽  
Alexey Shashurin
Keyword(s):  
Cross Sections ◽  
Multiphoton Ionization ◽  
Ionization Cross ◽  
Direct Measurements ◽  
Ionization Cross Sections

scholarly journals Electron-impact ionization of the Pb atom

2021 ◽  
Vol 75 (2) ◽  
Author(s):  
M. S. Pindzola ◽  
S. D. Loch ◽  
J. P. Colgan
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Impact Ionization ◽  
Polarization Potential ◽  
Time Dependent ◽  
Experimental Measurements ◽  
Ionization Cross ◽  
Close Coupling ◽  
Direct Ionization ◽  
Ionization Cross Sections

Abstract Electron-impact ionization cross sections are calculated for the ground configuration of the Pb atom. Time-dependent close-coupling cross sections for the direct ionization of the 6s and 6p subshells leading to single ionization are calculated with and without a polarization potential. Configuration-average distorted-wave cross sections for the direct ionization of the 6s and 6p subshells leading to single ionization are also calculated with and without a polarization potential. We find the time-dependent close-coupling cross sections using a polarization potential to be in good agreement with convergent-close-coupling cross sections using a polarization potential. The total direct ionization cross sections are compared to two sets of experimental measurements. The differences between the direct ionization cross sections and the experimental measurements are mainly due to indirect ionization cross sections coming from the $$6s^2 6p^2 \rightarrow 6s 6p^3$$ 6 s 2 6 p 2 → 6 s 6 p 3 excitation followed by autoionization. GraphicAbstract

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