High frequency laser-based ultrasound

R. D. Huber*, D. J. Chinn, O. O. Balogun, T. W. Murray

*Corresponding author for this work

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

Abstract

To obtain micrometer resolution of materials using acoustics requires frequencies around 1 GHz. Attenuation of such frequencies is high, limiting the thickness of the parts that can be characterized. Although acoustic microscopes can operate up to several GHz in frequency, they are used primarily as a surface characterization tool. The use of a pulsed laser for acoustic generation allows generation directly in the part, eliminating the loss of energy associated with coupling the energy from a piezoelectric transducer to the part of interest. The use of pulsed laser acoustic generation in combination with optical detection is investigated for the non-contact characterization of materials with features that must be characterized to micrometer resolution.

Original languageEnglish (US)
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation
Subtitle of host publicationVolume 25A
Pages218-224
Number of pages7
DOIs
StatePublished - Mar 6 2006
EventReview of Progress in Quantitative Nondestructive - Brunswick, ME, United States
Duration: Jul 31 2005Aug 5 2005

Publication series

NameAIP Conference Proceedings
Volume820 I
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherReview of Progress in Quantitative Nondestructive
CountryUnited States
CityBrunswick, ME
Period7/31/058/5/05

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Keywords

  • Laser-based ultrasound

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Huber, R. D., Chinn, D. J., Balogun, O. O., & Murray, T. W. (2006). High frequency laser-based ultrasound. In Review of Progress in Quantitative Nondestructive Evaluation: Volume 25A (pp. 218-224). (AIP Conference Proceedings; Vol. 820 I). https://doi.org/10.1063/1.2184532