Optical spectra of liquid water in vacuum uv region by means of inelastic x-ray scattering spectroscopy

Hisashi Hayashi, Noboru Watanabe, Yasuo Udagawa, C. C. Kao

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)

Abstract

Inelastic x-ray scattering (IXS) spectroscopy using hard x-rays is in principle equivalent to optical spectroscopy as long as momentum transfer can be approximated to be zero. Hence IXS spectra of liquid water which corresponds to vacuum uv absorption were measured at small energy transfers with energy resolution of 0.5 eV. The loss function was derived from the spectra and its convergence for the momentum transfer smaller than 0.28 a.u. was confirmed. The reflectance spectrum and the optical oscillator strength have been calculated from the loss function. It is shown that the optical oscillator strength of liquid water differs considerably from that of gaseous water.

Original languageEnglish
Pages (from-to)823-825
Number of pages3
JournalJournal of Chemical Physics
Volume108
Issue number3
DOIs
Publication statusPublished - 1998 Jan 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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