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Controlling the light intensity distribution in a three dimensional region with real-time optoacoustic feedback

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Abstract

We describe a three-dimensional optoacoustic (photoacoustic) wavefront shaping platform that provides feedback on the distribution of light absorption in an entire volume with frame rates of tens of Hz. Experiments with absorbing particles as guidance sources demonstrate the basic feasibility to deliver light to specific locations through scattering objects, whereas particle’s size is a key parameter for maximizing the signal enhancement.

© 2016 Optical Society of America

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