Cw laser ionization of C[sub 60] and C[sub 70]

Cw laser ionization of C[sub 60] and C[sub 70]

Delayed'' photoionization of the all-carbon cage fullerene molecules C[sub 60] and C[sub 70] is observed using a weakly focused cw argon ion laser (flux [ital I][lt]10[sup 5] W/cm[sup 2]). At these fluxes photoexcitation occurs incoherently and so slowly that intersystem crossing must be o...

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Veröffentlicht in:Physical review letters 1994-08, Vol.73:8
Hauptverfasser: Ding, D., Huang, J., Compton, R.N., Klots, C.E., Haufler, R.E.
Format: Artikel
Sprache:eng
Schlagworte:
664200 - Spectra of Atoms & Molecules & their Interactions with Photons- (1992-)
664500 - Special Atoms & Molecules- (1992-)
ARGON
ATOMIC AND MOLECULAR PHYSICS
CARBON
COMPARATIVE EVALUATIONS
DATA
ELEMENTS
EMISSION
EVALUATION
EXPERIMENTAL DATA
FLUIDS
FULLERENES
GAS LASERS
GASES
INFORMATION
IONIZATION
LASERS
MASS SPECTRA
NONMETALS
NUMERICAL DATA
PHOTOIONIZATION
RARE GASES
SPECTRA
THERMIONIC EMISSION
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Zusammenfassung:Delayed'' photoionization of the all-carbon cage fullerene molecules C[sub 60] and C[sub 70] is observed using a weakly focused cw argon ion laser (flux [ital I][lt]10[sup 5] W/cm[sup 2]). At these fluxes photoexcitation occurs incoherently and so slowly that intersystem crossing must be occurring simultaneously. A thermionic emission'' model adequately describes the delayed ionization.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.73.1084