Pump-energy-dependent photo-ionization and collisional ionization in two-photon-resonant- and three-photon-ionization processes

1998 ◽  
Vol 66 (5) ◽  
pp. 617-620 ◽  
Author(s):  
K.-H. Ko ◽  
Y.-C. Noh ◽  
G.-H. Kim ◽  
J.-H. Lee ◽  
J.-S. Chang ◽  
...  
Keyword(s):  
Pump Energy ◽  
Two Photon ◽  
Photon Ionization ◽  
Ionization Processes ◽  
Collisional Ionization ◽  
Energy Dependent ◽  
Photo Ionization

Laser-Power Dependency of Resonant Two-Photon Ionization in Flames

1989 ◽  
Vol 43 (4) ◽  
pp. 633-637 ◽  
Author(s):  
M. D. Seltzer ◽  
R. B. Green
Keyword(s):  
Laser Power ◽  
Diagnostic Value ◽  
Second Order ◽  
Excitation Scheme ◽  
Order Dependence ◽  
Two Photon ◽  
Ionization Mechanisms ◽  
Ionization Signal ◽  
Photon Ionization ◽  
Collisional Ionization

Resonant two-photon ionization competes with laser-enhanced collisional ionization (LEI) in flames to ionize analyte atoms. The predominance of either mechanism for a given element depends on the excitation scheme as well as the level of irradiance. Optical saturation of the resonant transition through which the two-photon mechanism proceeds precludes observation of a second-order dependence of ionization signal on laser power. The laser power dependency of resonant two-photon ionization for a series of elements is examined, and results of diagnostic value regarding the probable ionization mechanisms are obtained.

Laser studies of polystyrene precursors performed through resonant two photon ionization processes in a supersonic molecular beam

1993 ◽  
Vol 69 (1-4) ◽  
pp. 340-344 ◽  
Author(s):  
A. Giardini Guidoni ◽  
S. Piccirillo ◽  
M. Coreno ◽  
M. Snels ◽  
A. Morone ◽  
...  
Keyword(s):  
Molecular Beam ◽  
Supersonic Molecular Beam ◽  
Two Photon ◽  
Photon Ionization ◽  
Ionization Processes

Two‐photon ionization processes of PO in a C2H2/air flame

1982 ◽  
Vol 77 (4) ◽  
pp. 1779-1787 ◽  
Author(s):  
Kermit C. Smyth ◽  
W. Gary Mallard
Keyword(s):  
Two Photon ◽  
Photon Ionization ◽  
Ionization Processes
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