18 March 2016 Breaking the acoustic diffraction limit in photoacoustic imaging with multiple speckle illumination
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Abstract
In deep photoacoustic imaging, resolution is inherently limited by acoustic diffraction, and ultrasonic frequencies cannot be arbitrarily increased because of attenuation in tissue. Here we report on the use of multiple speckle illumination to perform super resolution photoacoustic imaging. We show that the analysis of speckle-induced second-order fluctuations of the photoacoustic signal combined with deconvolution enables to resolve optically absorbing structures below the acoustic diffraction limit.
Conference Presentation
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Thomas Chaigne, Thomas Chaigne, Jérôme Gateau, Jérôme Gateau, Marc Allain, Marc Allain, Ori Katz, Ori Katz, Sylvain Gigan, Sylvain Gigan, Anne Sentenac, Anne Sentenac, Emmanuel Bossy, Emmanuel Bossy, "Breaking the acoustic diffraction limit in photoacoustic imaging with multiple speckle illumination", Proc. SPIE 9708, Photons Plus Ultrasound: Imaging and Sensing 2016, 97081P (18 March 2016); doi: 10.1117/12.2212928; https://doi.org/10.1117/12.2212928
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