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1 April 1992 Laser desorption jet cooling spectroscopy of organic clusters
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While laser ablation is often used to create clusters, laser desorption at lower fluences can be used to probe clusters already present on a surface or van der Waals clusters formed between desorbed species and gas phase atoms. As an example of the former we discuss a study of para amino benzoic acid dimers. The dimers are formed by laser desorbing the monomer into a supersonic expansion. With the technique of laser desorption jet cooling it is also possible to form van der Waals clusters and species in the drive gas. As an example we discuss the spectroscopy of triphenylamine/argon clusters. Finally, the same technique allows the study of species on the surface, rather than clusters formed by the volatilization itself. A dramatic example is the formation of carbon clusters by laser ablation in a separate step and their subsequent study by laser desorption.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mattanjah S. de Vries, Heinrich E. Hunziker, Gerard Meijer, and H. Russell Wendt "Laser desorption jet cooling spectroscopy of organic clusters", Proc. SPIE 1638, Optical Methods for Time- and State-Resolved Chemistry, (1 April 1992);


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