Fragmentation dynamics of fullerenes in intense femtosecond-laser fields: loss of small neutral fragments on a picosecond time scale

Fragmentation dynamics of fullerenes in intense femtosecond-laser fields: loss of small neutral fragments on a picosecond time scale

The fragmentation dynamics of C60 irradiated with intense femtosecond laser pulses is studied with one-color pump-probe spectroscopy. Small neutral fragments (C, C2, and C3) are formed by an 800-nm pump pulse which are then postionized by a delayed probe pulse. The respective ion signals detected by...

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Veröffentlicht in:The Journal of chemical physics 2005-05, Vol.122 (18), p.181103-181103
Hauptverfasser: Boyle, M, Laarmann, T, Shchatsinin, I, Schulz, C P, Hertel, I V
Format: Artikel
Sprache:eng
Schlagworte:
BEAMS
FRAGMENTATION
FULLERENES
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
IONS
IRRADIATION
LASER RADIATION
LASERS
MASS SPECTRA
MASS SPECTROSCOPY
MATERIALS SCIENCE
PROBES
PULSES
TIME-OF-FLIGHT METHOD
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Zusammenfassung:The fragmentation dynamics of C60 irradiated with intense femtosecond laser pulses is studied with one-color pump-probe spectroscopy. Small neutral fragments (C, C2, and C3) are formed by an 800-nm pump pulse which are then postionized by a delayed probe pulse. The respective ion signals detected by the time-of-flight mass spectrometry dramatically increase on a time scale of 10-20 ps.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1903949