Multi-wavelength photo-acoustic microscopy in the frequency domain for simultaneous excitation and detection of dyes

Olivier Hugon 1 Boudewijn van der Sanden 2 Mehdi Inglebert 3 Olivier Jacquin 1 Chaouqi Misbah 4 Eric Lacot 5
1 OPTIMA
LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
3 LIPhy-OPTIMA
LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
4 LIPHY-DYFCOM
LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
5 LIPhy-OPTIMA
LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
Abstract : An optical-resolution photoacoustic microscope with modulated CW laser diodes allowing multi-channel imaging is presented that can be used for both imaging biological tissues and for targeted photo-dynamic therapy (PDT) varying the optical power and exposure time. The effects of this therapy are immediately monitored in order to optimize the time of irradiation. After the description of the experimental setup, in vitro and in vivo applications are presented on a synthetic sample and on the mouse ear using hemoglobin as endogenous and methylene blue as exogenous dye for imaging and PDT, respectively.
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Olivier Hugon, Boudewijn van der Sanden, Mehdi Inglebert, Olivier Jacquin, Chaouqi Misbah, et al.. Multi-wavelength photo-acoustic microscopy in the frequency domain for simultaneous excitation and detection of dyes. Biomedical optics express, Optical Society - SOA Publishing, 2019, 10 (2), pp.932. ⟨10.1364/boe.10.000932⟩. ⟨hal-02001997⟩

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