Observation of induced shear acoustic phonons by Brillouin scattering

T. Yoshida, S. Murata, T. Yanagitani, M. Matsukawa

Research output: Contribution to journalConference article

Abstract

In order to overcome the low accuracy of velocity measurements by Brillouin scattering, we have tried to make use of the induced coherent phonons, which brings intense Brillouin scattering peaks. To induce phonons, we used a tilted ZnO film transducer developed in our laboratory. As a result, we obtained the intense Stokes peak in the silica glass sample which was much larger than that obtained from the thermal phonons. Because Brillouin scattering enables the simultaneous measurement of longitudinal and shear phonons velocities, this technique opens the new feature for the non-destructive elasticity measurement.

Original languageEnglish
Pages (from-to)4605-4609
Number of pages5
JournalProceedings - European Conference on Noise Control
Publication statusPublished - 2008 Dec 1
Externally publishedYes
Event7th European Conference on Noise Control 2008, EURONOISE 2008 - Paris, France
Duration: 2008 Jun 292008 Jul 4

ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Public Health, Environmental and Occupational Health
  • Building and Construction
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Automotive Engineering
  • Aerospace Engineering

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