Determination of the transport properties of ultrasonic waves traveling in piezo-electric crystals by imaging with Coulomb coupling

A. Habib, A. Shelke, U. Pietsch, T. Kundu, W. Grill

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Coulomb coupling has been applied for imaging of bulk and guided acoustic waves propagating in a 0.5 mm thick, z cut Lithium Niobate single-crystal. The excitation and detection of acoustic waves was performed by localized electrical field probes. The developed scheme has been applied to imaging of the transport properties of skimming longitudinal and guided acoustic waves. A short pulse of 20 ns has been used for the excitation of acoustic waves. Broadband coupling is achieved since neither mechanical nor electrical resonances are involved. The attenuation of acoustic waves in piezoelectric crystals is studied by this method. A thin film of conductive silver paint was deposited on the surface of the crystal acting as an acoustic attenuator inducing also mass loading effects and shortening of electrical fields. The group velocities of the propagating acoustic waves for both conditions, with and without the conductive silver paint film, are determined from the propagation of the acoustic wave fronts.

Original languageEnglish (US)
Title of host publicationHealth Monitoring of Structural and Biological Systems 2012
DOIs
StatePublished - Jun 6 2012
EventHealth Monitoring of Structural and Biological Systems 2012 - San Diego, CA, United States
Duration: Mar 12 2012Mar 15 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8348
ISSN (Print)0277-786X

Other

OtherHealth Monitoring of Structural and Biological Systems 2012
CountryUnited States
CitySan Diego, CA
Period3/12/123/15/12

Keywords

  • Attenuation
  • Broadband
  • Bulk acoustic waves
  • Coulomb coupling
  • Surface skimming acoustic waves

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Determination of the transport properties of ultrasonic waves traveling in piezo-electric crystals by imaging with Coulomb coupling'. Together they form a unique fingerprint.

  • Cite this

    Habib, A., Shelke, A., Pietsch, U., Kundu, T., & Grill, W. (2012). Determination of the transport properties of ultrasonic waves traveling in piezo-electric crystals by imaging with Coulomb coupling. In Health Monitoring of Structural and Biological Systems 2012 [834816] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8348). https://doi.org/10.1117/12.917557