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Proceedings Paper

Non-contact photoacoustic tomography using holographic full field detection
Author(s): Jens Horstmann; Ralf Brinkmann
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Paper Abstract

An innovative very fast non-contact imaging technique for Photoacoustic Tomography is introduced. It is based on holographic optical speckle detection of a transiently altering surface topography for the reconstruction of absorbing targets. The surface movement is obtained by parallel recording of speckle phase changes known as Electronic Speckle Pattern Interferometry. Due to parallelized 2-D camera detection and repetitive excitation with variable delay with respect to the image acquisition, data recording of whole volumes for Photoacoustic Imaging can be completed in times far below one second. The size of the detected area is scalable by optical magnification. As a proof of concept, an interferometric setup is realized, capable of surface displacement detection with an axial resolution of less than 3 nm. The potential of the proposed method for in vivo Photoacoustic Imaging is discussed.

Paper Details

Date Published: 14 June 2013
PDF: 6 pages
Proc. SPIE 8800, Opto-Acoustic Methods and Applications, 880007 (14 June 2013); doi: 10.1117/12.2033599
Show Author Affiliations
Jens Horstmann, Medical Laser Ctr. Lübeck (Germany)
Ralf Brinkmann, Medical Laser Ctr. Lübeck (Germany)
Univ. of Lübeck (Germany)


Published in SPIE Proceedings Vol. 8800:
Opto-Acoustic Methods and Applications
Vasilis Ntziachristos; Charles P. Lin, Editor(s)

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