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Multiphoton ionization of ions, neutrals, and clusters. Progress report

Technical Report ·
DOI:https://doi.org/10.2172/674620· OSTI ID:674620
Scientific results are summarized from a three year research program on multiphoton ionization in aromatic molecules, clusters, and their ions. As originally proposed, the studies elucidated a new cluster ionization mechanism, characterized properties of long range intermolecular interactions, and investigated electronic transitions of aromatic cations cooled in a supersonic beam. The studies indicate that the new cluster ionization mechanism is highly efficient and dominates conventional 1 + 1 resonant ionization. In the case of the dimer of the large aromatic molecule fluorene, the results suggest that excimer formation competes with a direct ionization process. Highly selective excitonic spectra have been identified for several cluster species.
Research Organization:
Aerospace Corp., Electronics Technology Center, El Segundo, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Research, Washington, DC (United States)
DOE Contract Number:
FG03-86ER60391
OSTI ID:
674620
Report Number(s):
DOE/ER/60391--T4; ON: DE99000263
Country of Publication:
United States
Language:
English