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Proceedings Paper

Calculating absolute optical absorption coefficients from photoacoustic measurements by iterative fitting
Author(s): Yi Wang; Ruikang Wang
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Paper Abstract

We propose and demonstrate a new photoacoustic method to calculate the absolute optical absorption coefficient of a sample. An exact solution of the wave equation is employed to iteratively fit the detected photoacoustic signals. We fit the ratio of the amplitudes of the characteristic peaks of photoacoustic signals in order to increase fitting speed and reduce the influences of background signals. This method is tested by both numerical simulations and experimental results.

Paper Details

Date Published: 28 February 2008
PDF: 7 pages
Proc. SPIE 6856, Photons Plus Ultrasound: Imaging and Sensing 2008: The Ninth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, 685628 (28 February 2008); doi: 10.1117/12.764588
Show Author Affiliations
Yi Wang, Oregon Health & Science Univ. (United States)
Foshan Univ. (China)
Ruikang Wang, Oregon Health & Science Univ. (United States)


Published in SPIE Proceedings Vol. 6856:
Photons Plus Ultrasound: Imaging and Sensing 2008: The Ninth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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