Transient vibrational temperatures estimated from anti-Stokes and Stokes Raman intensities and vibrational cooling of electronically excited trans-stilbene in solution

Hiromi Okamoto, Takakazu Nakabayashi, Mitsuo Tasumi

研究成果: Article査読

9 被引用数 (Scopus)

抄録

To examine vibrational cooling of trans-stilbene in the S1 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, respectively, at 0 ps after photoexcitation (temporal resolution ca 5 ps). These values are higher than the equilibrium temperature (ca 550 K) calculated for a statistical distribution of excess vibrational energy. Ultrafast intermolecular energy flow (vibrational cooling) is discussed based on a model analysis. Copyright (C) 2000 John Wiley and Sons, Ltd.

本文言語English
ページ(範囲)305-309
ページ数5
ジャーナルJournal of Raman Spectroscopy
31
4
DOI
出版ステータスPublished - 2000
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 分光学

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