Photoacoustics with coherent light
Résumé
Since its introduction in the mid-nineties, photoacoustic imaging of biological tissue has been one of the fastest growing biomedical imaging modality, and its basic principles are now considered as well established. In particular, light propagation in photoacoustic imaging is generally considered from the perspective of transport theory. However, recent breakthroughs in optics have shown that coherent light propagating through optically scattering medium could be manipulated towards novel imaging approaches. In this article, we review the recent works showing that it is also possible to exploit the coherence of light in conjunctions with photoacoustics. We illustrate how the photoacoustic effect can be used as a powerful feedback mechanism for optical wavefront shaping in complex media, and conversely show how the coherence of light can be exploited to enhance photoacoustic imaging. Finally, we discuss the current challenges and perspectives down the road towards practical applications in the field of photoacoustic imaging.
Origine | Publication financée par une institution |
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