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Improving Photoacoustic-guided Focusing in Scattering Media by Spectrally Filtered Detection
Thomas Chaigne, Ori Katz, Jérôme Gateau +3
We experimentally and numerically study the potential of photoacoustic-guiding for light focusing through scattering samples via wavefront-shaping and iterative optimization. We ex…
Influence of nanoscale temperature rises on photoacoustic generation: discrimination between optical absorbers based on nonlinear photoacoustics at high frequency
Oliver Simandoux, Amaury Prost, Jérôme Gâteau +1
In the thermoelastic regime, photoacoustic sensing of optical absorption relies on conversion from light to acoustic energy via the coefficient of thermal expansion β. In this work…
Improving visibility in photoacoustic imaging using dynamic speckle illumination
Jérôme Gateau, Thomas Chaigne, Ori Katz +2
In high-frequency photoacoustic imaging with uniform illumination, homogeneous photo-absorbing structures may be invisible because of their large size or limited-view issues. Here…