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Proceedings Paper

Photoacoustic determination of optical parameters of biological tissue
Author(s): Stefan Lohmann; Christine Ruff; Christoph H. Schmitz; Holger Lubatschowski; Wolfgang Ertmer
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Paper Abstract

Tissue optical properties are determined by an interpretation of pressure transients generated by irradiation with pulsed laser light. These pressure signals are detected using piezoelectric transducers. The signals are influenced by numerous processes during generation, propagation and detection. To study each process in particular, specific experiments were performed using biological tissue in vitro as well as different substances with various absorption and scattering properties. Especially acoustical diffraction effects cause a strong distortion of the shape and spatial oscillations in the amplitude of the transients. These phenomenons were investigated experimentally and verified theoretically.

Paper Details

Date Published: 5 December 1996
PDF: 10 pages
Proc. SPIE 2923, Laser-Tissue Interaction and Tissue Optics II, (5 December 1996); doi: 10.1117/12.260727
Show Author Affiliations
Stefan Lohmann, Univ. Hannover (FRG) and Laserzentrum Hannover (Germany)
Christine Ruff, Univ. Hannover (Germany)
Christoph H. Schmitz, Univ. Hannover (Germany)
Holger Lubatschowski, Univ. Hannover (FRG) and Laserzentrum Hannover (Germany)
Wolfgang Ertmer, Univ. Hannover (Germany)


Published in SPIE Proceedings Vol. 2923:
Laser-Tissue Interaction and Tissue Optics II
Hansjoerg Albrecht; Guy P. Delacretaz; Thomas H. Meier; Rudolf W. Steiner; Lars Othar Svaasand, Editor(s)

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