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Proceedings Paper

Laser desorption jet cooling spectroscopy
Author(s): Mattanjah S. de Vries; Heinrich E. Hunziker; Gerard Meijer; H. Russell Wendt
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Paper Abstract

Laser desorption followed by jet-cooling allows wavelength-selective as well as mass-selective detection of organic molecules desorbed from a surface without fragmentation. The absolute detection sensitivity is demonstrated with the perylene molecule. A two-color REMPI spectrum (400 wavelength points) of perylene is recorded using only 30 picogram of material. Rotational cooling to 5 - 10 K is demonstrated with laser-desorbed anthracene; vibrational cooling below 15 K is demonstrated with laser-desorbed diphenylamine. The ability to take a 'snapshot' of molecules on a surface is illustrated with the spectrum of benzoic acid monomers. Other applications are discussed, i.e. PABA dimer spectroscopy and detection of C60.

Paper Details

Date Published: 1 April 1991
PDF: 9 pages
Proc. SPIE 1437, Applied Spectroscopy in Material Science, (1 April 1991); doi: 10.1117/12.45138
Show Author Affiliations
Mattanjah S. de Vries, IBM/Almaden Research Ctr. (United States)
Heinrich E. Hunziker, IBM Corp. (United States)
Gerard Meijer, IBM Corp. (United States)
H. Russell Wendt, IBM Corp. (United States)


Published in SPIE Proceedings Vol. 1437:
Applied Spectroscopy in Material Science
David D. Saperstein, Editor(s)

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