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Proceedings Paper

Femtosecond optical spectroscopy of fullerites
Author(s): A. L. Dobryakov; V. M. Farztdinov; Yurii E. Lozovik; Juru A. Matveets; Andrei G. Stepanov; Arkady P. Yartsev; Vladilen S. Letokhov
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Paper Abstract

The spectral dependence of ultrafast relaxation of excitations in a C60 thin film was discovered with the help of femtosecond laser spectroscopy. The dependence can be explained by the relaxation of excitations in different energy bands. The temporal dependence of photoinduced darkening is characterized by peak at delays of the order of pulse duration (approximately 50 fs). The peak is replaced at greater delays by a decrease with characteristic times (tau) 1 equals 0.4 ps and (tau) 2 equals 30 ps, determined by the relaxation of electrons on intramolecular and intermolecular oscillations. The spectral dependence of two- photon absorption is investigated.

Paper Details

Date Published: 10 May 1996
PDF: 8 pages
Proc. SPIE 2797, Nonlinear Spectroscopy and Ultrafast Phenomena, (10 May 1996); doi: 10.1117/12.239774
Show Author Affiliations
A. L. Dobryakov, Institute of Spectroscopy (Russia)
V. M. Farztdinov, Institute of Spectroscopy (Russia)
Yurii E. Lozovik, Institute of Spectroscopy (Russia)
Juru A. Matveets, Institute of Spectroscopy (Russia)
Andrei G. Stepanov, Institute of Spectroscopy (Russia)
Arkady P. Yartsev, Institute of Spectroscopy (Russia)
Vladilen S. Letokhov, Institute of Spectroscopy (Russia)

Published in SPIE Proceedings Vol. 2797:
Nonlinear Spectroscopy and Ultrafast Phenomena
Vladimir V. Shuvalov; Alexei M. Zheltikov, Editor(s)

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