Multiphoton Ionization of Ammonia Clusters with a Tunable Laser

1984 ◽  
Vol 88 (3) ◽  
pp. 217-219 ◽  
Author(s):  
O. Echt ◽  
S. Morgan ◽  
P. D. Dao ◽  
R. J. Stanley ◽  
A. W. Castleman
Keyword(s):  
Multiphoton Ionization ◽  
Tunable Laser ◽  
Ammonia Clusters

Non-adiabatic photodissociation dynamics of BrCl

1994 ◽  
Vol 72 (3) ◽  
pp. 758-761 ◽  
Author(s):  
Jianying Cao ◽  
Hans-Peter Loock ◽  
Charles X.W. Qian
Keyword(s):  
Laser Radiation ◽  
Potential Energy ◽  
Multiphoton Ionization ◽  
Branching Ratio ◽  
Tunable Laser ◽  
Branching Ratios ◽  
Excitation Wavelength ◽  
Dissociation Dynamics ◽  
Adiabatic Transitions ◽  
Insight Into

Nozzle-cooled BrCl was excited with tunable laser radiation at selected wavelengths between 389 and 500 nm. The chlorine atomic fragments in their Cl*(2P1/2) and Cl(2P3/2) state were stated-selectively probed by resonance-enhanced multiphoton ionization. The branching ratio (Cl*/(Cl + Cl*)) was measured as a function of the excitation wavelength. The relative Cl* yield reaches a maximum at around λphot = 460 nm. Decomposition of these branching ratios into Cl and Cl* photofragment yield spectra provides insight into the BrCl B-state 3П(0+) non-adiabatic dissociation dynamics. Our results suggest that the dissociation mechanism involves non-adiabatic transitions among 0+ potential energy curves.

Multiphoton ionization and oxidation processes of Mg–ammonia clusters

2005 ◽  
Vol 7 (5) ◽  
pp. 921-929 ◽  
Author(s):  
Nobuhiro Okai ◽  
Shinji Yoshida ◽  
Kengo Aranishi ◽  
Akihiro Takahata ◽  
Kiyokazu Fuke
Keyword(s):  
Multiphoton Ionization ◽  
Oxidation Processes ◽  
Ammonia Clusters

scholarly journals Study of Photoionization of Solids—Resonance Ionization

1985 ◽  
Vol 5 (5) ◽  
pp. 297-307 ◽  
Author(s):  
F. Verdun ◽  
J. F. Muller ◽  
G. Krier
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Multiphoton Ionization ◽  
Tunable Laser ◽  
Resonance Ionization ◽  
Experimental Conditions ◽  
Ionization Mechanisms ◽  
Polycyclic Aromatic ◽  
Solid Compounds ◽  
Derivatives Of

Multiphoton ionization (MPI) mechanism in the solid state being still controversial we coupled a tunable laser to the LAMMA 500 microprobe to reinvestigate, using different UV irradiations, the ionization of some organic and organometallic solid compounds. Two polycyclic aromatic hydrocarbons (PAH) anthracene and pyrene and metallic derivatives of copper and cadmium were tested. Preliminary results are consistent with thermal desorption of neutral molecules as the first step followed by photoionization in the vapor phase.Thus the ionization mechanisms described for gases or vapors, and in particular some REMPI or RIS processes appear to apply to our experimental conditions.

Multiphoton ionization of ammonia clusters and the dissociation dynamics of protonated cluster ions

1985 ◽  
Vol 82 (9) ◽  
pp. 4076-4085 ◽  
Author(s):  
O. Echt ◽  
P. D. Dao ◽  
S. Morgan ◽  
A. W. Castleman
Keyword(s):  
Multiphoton Ionization ◽  
Cluster Ions ◽  
Dissociation Dynamics ◽  
Ammonia Clusters

Femtosecond multiphoton ionization of ammonia clusters

1992 ◽  
Vol 97 (12) ◽  
pp. 9480-9482 ◽  
Author(s):  
S. Wei ◽  
J. Purnell ◽  
S. A. Buzza ◽  
R. J. Stanley ◽  
A. W. Castleman
Keyword(s):  
Multiphoton Ionization ◽  
Ammonia Clusters

Dissociation dynamics and multiphoton ionization mechanism of ammonia clusters

1989 ◽  
Vol 93 (20) ◽  
pp. 7041-7044 ◽  
Author(s):  
F. Misaizu ◽  
P. L. Houston ◽  
N. Nishi ◽  
H. Shinohara ◽  
T. Kondow ◽  
...  
Keyword(s):  
Multiphoton Ionization ◽  
Ionization Mechanism ◽  
Dissociation Dynamics ◽  
Ammonia Clusters
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