Characterization of multilayered structures by piezoelectric photoacoustic imaging

Hiroyuki Nabeta, Kazushi Yamanaka, Yoshihiko Nagata, Toshio Koda, Yoshihiko Kanemitsu, Yasuaki Masumoto

研究成果: Article

5 引用 (Scopus)

抜粋

The piezoelectric photoacoustic spectroscopy of multilayered structures was studied both theoretically and experimentally. We calculated the one-dimensional temperature moment caused by light absorption and heat diffusion. It was found that the temperature moment is able to explain the basic feature of the photoacoustic (PA) signal of bonded Cu plates including an air gap detected by a PZT transducer attached to the back surface of the plate. The phase of the PA signal at low frequencies is very sensitive to the thickness of the air gap between two Cu plates.

元の言語English
ページ(範囲)289-291
ページ数3
ジャーナルJapanese journal of applied physics
30
DOI
出版物ステータスPublished - 1991 1

ASJC Scopus subject areas

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

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