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Published on: March 20, 2017
Optical phase conjugation in Nd:YVO4 for acousto-optic detection in scattering media
B Jayet1, J-P Huignard, F Ramaz
1Institut Langevin, ESPCI ParisTech, CNRS UMR7587, 1 rue Jussieu, Paris 75005, France. baptiste.jayet@espci.fr
Abstract:
Acousto-optic imaging is a technique that maps the optical properties of a thick scattering sample with millimetric resolution. The detection of the acousto-optic signal represents a challenge, because it is very weak among a strong parasitic signal. Various methods based on holography in photorefractive crystals or digital holography have been studied. Here dynamic holography is obtained with the gain medium Nd:YVO(4). We study the experimental feasibility of a detection system based on holography in a gain medium and show acousto-optic results obtained in a 5 mm slice of chicken breast.
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