Real-time acousto-optic imaging using high-peak-power long-pulsed illumination
Acousto-optic imaging (AOI) of absorbing objects embedded in highly scattering media remains challenging, since the detectable signal suitable for image reconstruction is weak. To increase the detected signals to a level required by live biological applications, we designed a high-peak-power quasi-continuous laser source based on the coherent combination of two pulsed amplifiers, delivering 100-µs-long pulses with a 9 W peak power at a 100 Hz repetition rate while maintaining an average power below 100 mW; jointly used with a digital holographic detection that maximizes the amount of collected signal, we demonstrate for the first time to our knowledge the optical imaging of 2-cm-thick highly scattering media (µ<sub>s</sub>' ∼ 10 cm<sup>-1</sup>) at near-video frame rate (0.2 Hz) using the Fourier transform-AOI.
Authors
- Jean-Michel Tualle (ORCID: https://orcid.org/0000-0002-8365-9438)
- Patrick Georges (ORCID: https://orcid.org/0000-0001-6822-2775)
- Sylvie Janicot
- Maïmouna Bocoum (ORCID: https://orcid.org/0000-0001-5332-1324)
- François Figliolia
- Qin Liu (ORCID: https://orcid.org/0000-0002-6826-4913)
- Jean‐Pierre Huignard
- François Ramaz
- Gaëlle Lucas-Leclin
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Paris Sciences et Lettres (FR)
- Université Paris-Saclay (FR)
- Sorbonne Université (FR)
- Université Sorbonne Paris Nord (FR)
- Institut Langevin (FR)
- Institut Jean Nicod (FR)
- Laboratoire Charles Fabry (FR)
- ESPCI Paris (FR)
Publication Details
- Journal
- Optics Letters
- Published
- 2024-09-23
- DOI
- https://doi.org/10.1364/ol.528953
- Citations
- 2
- Primary Topic
- Photoacoustic and Ultrasonic Imaging
- Type
- article
- Field-Weighted Citation Impact
- 0.37
Funders
- Agence Nationale de la Recherche