Supersonic jet/multiphoton ionization spectrometry of chemical species resulting from thermal decomposition and laser ablation of polymers

1995 ◽  
Author(s):  
Masami Hozumi ◽  
Yoshiaki Murata ◽  
Cheng-Huang Lin ◽  
Totaro Imasaka
Keyword(s):  
Thermal Decomposition ◽  
Laser Ablation ◽  
Multiphoton Ionization ◽  
Supersonic Jet ◽  
Chemical Species

Supersonic jet spectrometry of chemical species resulting from thermal decomposition of polystyrene and polycarbonate

1992 ◽  
Vol 64 (19) ◽  
pp. 931A-940A ◽  
Author(s):  
Totaro Imasaka ◽  
Masami Hozumi ◽  
Nobuhiko Ishibashi
Keyword(s):  
Thermal Decomposition ◽  
Supersonic Jet ◽  
Chemical Species

Supersonic jet spectrometry of chemical species resulting from thermal decomposition of polystyrene and polycarbonate

1992 ◽  
Vol 64 (19) ◽  
pp. 2206-2209 ◽  
Author(s):  
Totaro. Imasaka ◽  
Masami. Hozumi ◽  
Nobuhiko. Ishibashi
Keyword(s):  
Thermal Decomposition ◽  
Supersonic Jet ◽  
Chemical Species

Nanosecond and Femtosecond UV Laser Ablation of CdTe (100): Time-Of-Flight and Angular Distributions

1993 ◽  
Vol 334 ◽  
Author(s):  
P.D. Brewer ◽  
M. Späth ◽  
M. Stuke
Keyword(s):  
Laser Ablation ◽  
High Resolution ◽  
Mass Spectrometer ◽  
Multiphoton Ionization ◽  
Time Of Flight ◽  
Picosecond Laser ◽  
Laser Pulses ◽  
Dye Laser ◽  
Angular Distributions ◽  
Uv Laser

AbstractAngularly resolved time-of-flight (TOF) measurements have been used to probe the velocity and angular distributions of Cd atoms and Te2 molecules ejected from CdTe (100) substrates under irradiation by 248 nm nanosecond and sub-picosecond laser pulses. These experiments employ a dye laser TOF mass spectrometer with resonance enhanced multiphoton ionization for sensitive, high resolution detection of the desorbed products. The velocity distributions are well described by Maxwell-Boltzmann distributions for low fluence nanosecond (<60 mJ/cm2) and sub-picosecond (<3.3 mJ/cm2) pulses. Angular flux distributions for nanosecond irradiation are observed to be highly forward peaked about the surface normal, whereas, for sub-picosecond irradiation the distribution approaches cos3θ.

Multiphoton Ionization of Mixed Benzene-Water-Metanol Clusters. Competitive Microscopic Solvation

1990 ◽  
Vol 45 (9-10) ◽  
pp. 1217-1218 ◽  
Author(s):  
K. O. Börnsen ◽  
H. L. Selzle ◽  
E. W. Schlag
Keyword(s):  
Complex Formation ◽  
Water Molecule ◽  
Ternary Mixture ◽  
Multiphoton Ionization ◽  
Supersonic Jet ◽  
Polar Molecules ◽  
Supersonic Jet Expansion ◽  
Single Water Molecule

Abstract Clusters of benzene with polar molecules are observed from a supersonic jet expansion of a ternary mixture of benzene, water and methanol seeded in Helium. It is found that complex formation with methanol is strongly enhanced when a single water molecule is preadsorbed.

Simultaneous comparison of fluorescence spectrometry with multiphoton ionization spectrometry using a supersonic jet spectrometer

The Analyst ◽  
1991 ◽  
Vol 116 (10) ◽  
pp. 1037 ◽  
Author(s):  
Cheng-Huang Lin ◽  
Masami Hozumi ◽  
Totaro Imasaka ◽  
Nobuhiko Ishibashi
Keyword(s):  
Multiphoton Ionization ◽  
Supersonic Jet ◽  
Fluorescence Spectrometry ◽  
Simultaneous Comparison
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