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Proceedings Paper

Nondestructive evaluation of surface defects by the use of photothermal electrochemical imaging
Author(s): Tsutomu Hoshimiya; Ken-ya Ishikawa
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Paper Abstract

A new photothermal detection scheme based on a current-change in photothermally-enhanced electrochemical reaction is proposed and demonstrated. Nondestructive imaging of surface defects fabricated on a metal plate, immersed in an electrolyte, has been performed with a focused laser beam and detection apparatus of photoacoustic microscope (PAM). An imaging under the environment of electrolyte based on the principle of the detection was carried out with two- and tree terminal configurations, these results were compared with that obtained with conventional photoacoustic (PA) imaging.

Paper Details

Date Published: 7 May 1999
PDF: 4 pages
Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); doi: 10.1117/12.347837
Show Author Affiliations
Tsutomu Hoshimiya, Tohoku Gakuin Univ. (Japan)
Ken-ya Ishikawa, Tohoku Gakuin Univ. (Japan)

Published in SPIE Proceedings Vol. 3740:
Optical Engineering for Sensing and Nanotechnology (ICOSN '99)
Ichirou Yamaguchi, Editor(s)

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