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10 May 1996 Observation of coherent phonon generation in C60 films
A. L. Dobryakov, V. M. Farztdinov, S. S. Kovalenko, Vladilen S. Letokhov, Yurii E. Lozovik, Juru A. Matveets
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Proceedings Volume 2797, Nonlinear Spectroscopy and Ultrafast Phenomena; (1996) https://doi.org/10.1117/12.239775
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation
Abstract
By studying the temporal behavior of the optical density of C60 thin film with the help of femtosecond laser spectroscopy the coherent phonon oscillations in the frequency region 10 - 400 cm-1 (including with odd symmetry) in the wide spectral region of probing h(omega) pr equals 1.78 divided by 2.34 eV was detected. Spectral dependence of photoinduced response permits to observe selectively the relaxation of electrons in different bands. The possibility of reversible polymerization in excited state is discussed.
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A. L. Dobryakov, V. M. Farztdinov, S. S. Kovalenko, Vladilen S. Letokhov, Yurii E. Lozovik, and Juru A. Matveets "Observation of coherent phonon generation in C60 films", Proc. SPIE 2797, Nonlinear Spectroscopy and Ultrafast Phenomena, (10 May 1996); https://doi.org/10.1117/12.239775
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KEYWORDS
Phonons
Absorbance
Electrons
Absorption
Femtosecond phenomena
Laser spectroscopy
Solids
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