Coherence, relaxation and reaction of solution-phase molecules studied by femtosecond nonlinear spectroscopy: Vibrational coherence observed in the third order optical process

Tahei Tahara, Satoshi Takeuchi, Satoru Fujiyoshi, Shigeki Matsuo

Research output: Contribution to journalArticle

Abstract

Vibrational coherence of the condensed-phase polyatomic molecules was studied by several types of femtosecond time-resolved spectroscopy. The Raman-active vibrational coherence in the ground-state was observed through optically-heterodyned impulsive stimulated Raman scattering (ISRS) spectroscopy. Transient ISRS experiment was also undertaken for the measurement of the low frequency vibrations of the excited state. In transient absorption spectroscopy carried out with a 40-fs time resolution, vibrational coherence was created by ultrashort pump pulses and the wavepacket motion in the excited state was observed for trans-stilbene and diphenylcyclopropenone.

Original languageEnglish
Pages (from-to)82-88
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4752
DOIs
Publication statusPublished - 2002 Jan 1

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Keywords

  • Excited state
  • Impulsive stimulated Raman
  • Reaction
  • Transient absoroption
  • Vibrational coherence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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