Two-color pump-probe study and internal-energy dependence of Rydberg-state excitation in C{sub 60}

Journal Article · Mon Nov 01 04:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.051201· OSTI ID:20646151

Boyle, M; Schulz, C P; Hertel, I V ^[1]; Heden, M; Campbell, E E.B. ^[2]

---

1. Max-Born-Institut, Max-Born Strasse 2a, D-12489 Berlin (Germany)
2. Department of Experimental Physics, Goeteborg University and Chalmers University of Technology, SE-41296 Goeteborg (Sweden)

Excitation of Rydberg states in isolated C{sub 60} 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 t{sub 1g}(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 C{sub 60} at 770 K is found to support the excitation process very efficiently while in 'cold' C{sub 60} (80 K), no significant Rydberg population is detected.

• OSTI ID: 20646151
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COLOR
ELECTRON-ELECTRON COLLISIONS
ELECTRON-ELECTRON COUPLING
ELECTRON-ELECTRON INTERACTIONS
ENERGY DEPENDENCE
EXCITATION
FULLERENES
PHOTOELECTRON SPECTROSCOPY
PROBES
RELAXATION TIME
RYDBERG STATES
SPECTRA
TIME RESOLUTION
VIBRATIONAL STATES