Time-resolved study of formate on Ni(1 1 1) by picosecond SFG spectroscopy

K. Kusafuka, H. Noguchi, K. Onda, J. Kubota, K. Domen, C. Hirose, A. Wada

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Time-resolved vibrational measurements were carried out on formate (HCOO) adsorbed on Ni(1 1 1) surface by combining the sum-frequency generation method and picosecond laser system (time resolution of 6 ps). Rapid intensity decrease (within the time resolution) followed by intensity recovery (time constant of several tens of ps) of CH stretching signal was observed when picosecond 800 nm pulse was irradiated on the sample surface. From the results of temperature and pump fluence dependences of temporal behaviour of signal intensity, we concluded that the observed intensity change was induced by non-thermal process. Mechanism of the temporal intensity change was discussed.

Original languageEnglish
Pages (from-to)313-318
Number of pages6
JournalSurface Science
Volume502-503
DOIs
Publication statusPublished - Apr 10 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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