Laser ultrasonic microscopy

Matt Clark, Steve D. Sharples, Michael Geoffrey Somekh

Research output: Publication in policy / professional / specialist journalArticle (for policy / professional audience)Academic researchpeer-review

7 Citations (Scopus)

Abstract

We demonstrate a fast optical scanning wave microscope. This acoustic microscope may be thought of as a noncontact (hence nondestructive) surface acoustic microscope. The key to obtaining a sufficient system signal to noise ratio without surface damage is tailoring of the generating optical distribution. This can be used to spread the optical power on the sample surface (preventing damage) and to focus the acoustic waves (increasing the amplitude). This paper introduces the optical scanning acoustic wave microscope, demonstrating some of its imaging capabilities, and discusses some of the ongoing work developing the techniques involved.
Original languageEnglish
Pages1094-1098
Number of pages5
Volume60
No.9
Specialist publicationMaterials Evaluation
Publication statusPublished - 1 Sep 2002
Externally publishedYes

Keywords

  • Acoustic microscopy
  • Laser ultrasonic microscopy
  • Optical microscopy
  • Optical nondestructive testing
  • Optical scanning acoustic wave microscope
  • Signal to noise ratio

ASJC Scopus subject areas

  • Materials Science (miscellaneous)

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