Postionization of molecules desorbed from surfaces by keV ion bombardment with femtosecond laser pulses

Kenneth F. Willey, Vasil Vorsa, Robert M. Braun, Nicholas Winograd

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

We report the use of femtosecond laser photoionization of sputtered neutral molecules to enhance the sensitivity of detection and to improve the prospects for molecule-specific imaging experiments. Results are presented for patterned metal oxides, polycyclic aromatic hydrocarbons and several amino acids. In addition to increased signal levels, we find that fs photoionization generally yields simpler mass spectra than the corresponding SIMS spectra, although considerable fragmentation is observed in both cases.

Original languageEnglish (US)
Pages (from-to)1253-1260
Number of pages8
JournalRapid Communications in Mass Spectrometry
Volume12
Issue number18
DOIs
StatePublished - Sep 24 1998

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

Fingerprint Dive into the research topics of 'Postionization of molecules desorbed from surfaces by keV ion bombardment with femtosecond laser pulses'. Together they form a unique fingerprint.

Cite this