Variable wavelength photoacoustic microscopy

Yoshihiko Nagata, Kazushi Yamanaka, Hisato Ogiso, Toshio Koda

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Imaging with a variable wavelength photoacoustic (PA) microscope is a technique that permits the characterization of surface-improved materials, layered materials, etc. The authors present theoretical and experimental studies of the modulation frequency dependence and the image for a layered sample using a variable-wavelength PA microscope. The theoretical predictions are compared with experimental results on a PA signal as a function of modulation frequency for a layered polypropylene film when varying the wavelengths. Good agreement was obtained for varied wavelengths. Examples are presented of photoacoustic images obtained with the variable-wavelength PA microscope. These show a change of PA signal caused by the alteration of the layer which absorbs the incident light.

Original languageEnglish
Pages (from-to)655-659
Number of pages5
JournalUltrasonics Symposium Proceedings
Publication statusPublished - 1990 Dec 1
EventProceedings of the IEEE 1990 Ultrasonics Symposium - Honolulu, HI, USA
Duration: 1990 Dec 41990 Dec 7

ASJC Scopus subject areas

  • Engineering(all)


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