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Journal of Biomedical Optics • Open Access

Photoacoustic imaging using acoustic reflectors to enhance planar arrays
Author(s): Robert Ellwood; Edward Zhang; Paul Beard; Ben Cox

Paper Abstract

Planar sensor arrays have advantages when used for photoacoustic imaging: they do not require the imaging target to be enclosed, and they are easier to manufacture than curved arrays. However, planar arrays have a limited view of the acoustic field due to their finite size; therefore, not all of the acoustic waves emitted from a photoacoustic source can be recorded. This loss of data results in artifacts in the reconstructed photoacoustic image. A detection array configuration which combines a planar Fabry–Pérot sensor with perpendicular acoustic reflectors is described and experimentally implemented. This retains the detection advantages of the planar sensor while increasing the effective detection aperture in order to improve the reconstructed photoacoustic image.

Paper Details

Date Published: 23 December 2014
PDF: 10 pages
J. Biomed. Opt. 19(12) 126012 doi: 10.1117/1.JBO.19.12.126012
Published in: Journal of Biomedical Optics Volume 19, Issue 12
Show Author Affiliations
Robert Ellwood, Univ. College London (United Kingdom)
Edward Zhang, Univ. College London (United Kingdom)
Paul Beard, Univ. College London (United Kingdom)
Ben Cox, Univ. College London (United Kingdom)

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