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Proceedings Paper

Contactless photoacoustic imaging of biological samples
Author(s): Thomas Berer; Armin Hochreiner; Hubert Grün; Peter Burgholzer
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Paper Abstract

In this paper we report on remote photoacoustic imaging using an interferometric technique. By utilizing a two-wave mixing interferometer ultrasonic displacements are measured without any physical contact to the sample. This technique allows measurement of the displacements also on rough surfaces. Mixing a plane reference beam with the speckled beam originating from the sample surface is done in a Bi12SiO20 photorefractive crystal. After data acquisition the structure of the specimen is reconstructed using a Fourier-domain synthetic focusing aperture technique. We show three-dimensional imaging on tissue-mimicking phantoms and biological samples. Furthermore, we show remote photoacoustic measurements on a human forearm in-vivo.

Paper Details

Date Published: 23 February 2012
PDF: 6 pages
Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 82231G (23 February 2012); doi: 10.1117/12.908483
Show Author Affiliations
Thomas Berer, Christian Doppler Lab. for Photoacoustic Imaging and Laser Ultrasonics (Austria)
RECENDT GmbH (Austria)
Armin Hochreiner, Christian Doppler Lab. for Photoacoustic Imaging and Laser Ultrasonics (Austria)
Hubert Grün, RECENDT GmbH (Austria)
Peter Burgholzer, Christian Doppler Lab. for Photoacoustic Imaging and Laser Ultrasonics (Austria)
RECENDT GmbH (Austria)


Published in SPIE Proceedings Vol. 8223:
Photons Plus Ultrasound: Imaging and Sensing 2012
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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