Improvement of piezoelectric photoacoustic imaging using two images at different modulation frequencies

Yoshihiko Nagata, Hisato Ogiso, Kazushi Yamanaka, Toshio Koda

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A new method is presented to improve piezoelectric photoacoustic imaging. This technique uses two images at different modulation frequencies to cancel the background caused by the coupling condition and the spatially nonuniform sensitivity of the piezoelectric sensor. It is found that the image of an object with sub-surface defects obtained by this technique is much clearer than a conventional image. The obtained photoacoustic image is compared with the ultrasonic image.

Original languageEnglish
Pages (from-to)246-248
Number of pages3
JournalJapanese journal of applied physics
Volume28
Issue numberS1
DOIs
Publication statusPublished - 1989 Jan 1

ASJC Scopus subject areas

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

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