Laser Spectroscopy of Combustion Intermediates in a Supersonic Jet Expansion

1994 ◽  
Author(s):  
Prabhakar Misra
Keyword(s):  
Laser Spectroscopy ◽  
Supersonic Jet ◽  
Supersonic Jet Expansion

A New Liquid Droplet Laser Desorption Source Combined with Supersonic Jet Expansion: Application to Phenol and its Water Clusters

2014 ◽  
Vol 228 (4-5) ◽  
Author(s):  
Chayan Kanti Nandi ◽  
Hans-Dieter Barth ◽  
Bernhard Brutschy
Keyword(s):  
Gas Phase ◽  
Water Clusters ◽  
Liquid Droplet ◽  
Supersonic Jet ◽  
Laser Desorption ◽  
Laser Source ◽  
Published Data ◽  
Two Photon ◽  
Supersonic Jet Expansion ◽  
Phase Out

AbstractWe have developed a new laser source, for the spectroscopy of nonvolatile molecules in gas phase. It is based on a laser induced liquid bead ion desorption source (LILBID) combined with a supersonic beam. The cold molecules produced with this technique are sampled with Resonant Two Photon Ionization spectroscopy (R2PI) to measurement of the gas phase optical spectra. LILBID allows to bring nonvolatile molecule from liquid phase (out of a droplet) into gas phase, by means of multi photon ablation with IR photons exciting the vibrations of the solvent. Phenol and its different water clusters have been used as an example to demonstrate the method and to standardise the new experimental setup. The recorded R2PI spectral data of phenol monomer and its different water clusters obtained from this laser desorption technique are in very good agreement with the previously published data. This technique opens a new door for the measurement of molecules under microsolvation and potentially for

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.

Symmetry selective cooling in the supersonic jet expansion of methane

1991 ◽  
Vol 146 (1) ◽  
pp. 181-187 ◽  
Author(s):  
Martin Hepp ◽  
G. Winnewisser ◽  
K.M.T. Yamada
Keyword(s):  
Supersonic Jet ◽  
Selective Cooling ◽  
Supersonic Jet Expansion
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