Subpicosecond anisotropic CARS studies of vibrational mode-selective photoexcitation and relaxation of trans-stilbene. First few picoseconds

Sub-picosecond coherent anti-Stokes Raman scattering (CARS) spectra of singlet trans-stilbene ( tSB) in heptane have been obtained using UV excitation and CARS probe for the 0–5 ps time range. The excited state CARS spectra of tSB in heptane exhibits mode-selective dynamics. Different temporal behav...

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Bibliographic Details
Published in:Chemical physics letters 1994-07, Vol.223 (5), p.573-581
Main Authors: Shkurinov, A.P., Koroteev, N.I., Jonusauskas, G., Rullière, C.
Format: Article
Language:English
Subjects:
Optics
Physics
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Summary:Sub-picosecond coherent anti-Stokes Raman scattering (CARS) spectra of singlet trans-stilbene ( tSB) in heptane have been obtained using UV excitation and CARS probe for the 0–5 ps time range. The excited state CARS spectra of tSB in heptane exhibits mode-selective dynamics. Different temporal behaviors of the three investigated S 1 Raman bands (1181, 1242 and 1565 cm −1) are observed. These results are discussed with respect to possible role of vibrational energy redistribution and associated conformational changes.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(94)00500-1