Excitation of hypersonic waves at metal/liquid interfaces using transient reflecting gratings

Akira Harata, Tsuguo Sawada

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Abstract

Optical generation of coherent hypersonic waves are first demonstrated at metal/liquid interfaces using the transient reflecting grating technique. Two important acoustic modes are identified: One is the Scholte (or pseudo-Stoneley) mode localized at the interfaces, and its velocity relates to the liquid elasticity within some hundreds of nanometers from the interface; and the other is a longitudinal acoustic mode propagating parallel to the interfaces in the liquids, and its intensity relates to heat conduction from the solid to the liquid.

Original languageEnglish
Pages (from-to)88-90
Number of pages3
JournalJapanese Journal of Applied Physics
Volume31
DOIs
Publication statusPublished - Jan 1992

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All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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