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Picosecond coherent Stokes and anti-Stokes raman spectra of hot S1 trans-stilbene in solution: The kinetics of vibrational cooling in the presence of “optical depletion”

✍ Scribed by V.F. Kamalov; N.I. Koroteev; A.P. Shkurinov; B.N. Toleutaev

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 494 KB
Volume: 147
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(88)80245-8

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✦ Synopsis

The experimental results of time-resolved coherent resonance Stokes and anti-Stokes Raman scattering spectroscopy of the excited electronic S, state of tram-stilbene in ethanol are presented. The detected considerable changes in vibrational spectra due to "optical depletion" of the population of the S, state reflect the picosecond kinetics of vibrational-translational relaxation of vibrationally "hot" excited molecules.

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✍ Hiromi Okamoto; Takakazu Nakabayashi; Mitsuo Tasumi 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 78 KB

To examine vibrational cooling of trans-stilbene in the S 1 state, transient temperatures of a few vibrational modes were estimated by analyzing transient anti-Stokes and Stokes Raman intensities. Vibrational temperatures obtained for the olefinic C C and C-Ph stretches are 900 and 680 K, respective