Two colour pump-probe study and internal energy dependence of Rydberg state excitation

Excitation of Rydberg states in isolated C60 is studied by time-resolved photoelectron spectroscopy in a femtosecond two-color pump-probe experiment. The relaxation time for electron-electron interaction is determined to be approximately 100 fs with the t1g(LUMO + 1) orbital being considered to define the doorway state in a nonadiabatic multielectron excitation process. The internal energy stored in vibrational modes of the C60 at 770 K is found to support the excitation process very efficiently while in "cold" C60 (80 K), no significant Rydberg population is detected.

Hedén, Martin,1976Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU) (author)
Schulz, C.P. (author)
Campbell, Eleanor E B,1960Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)(Swepub:gu)xcamel (author)
Hertel, Ingolf,1941 (author)
Göteborgs universitetInstitutionen för fysik (GU) (creator_code:org_t)

By the author/editor: Boyle, Mark; Hedén, Martin, 1 ...; Schulz, C.P.; Campbell, Eleano ...; Hertel, Ingolf, ...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Atom and Molecul ...

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