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Article Dans Une Revue Optics Express Année : 2021

3D-Coherent anti-Stokes Raman scattering Fourier ptychography tomography (CARS-FPT)

Sandro Heuke
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Hervé Rigneault
Anne Sentenac
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Résumé

Fourier ptychography tomography (FPT) is a novel computational technique for coherent imaging in which the sample is numerically reconstructed from images acquired under various illumination directions. FPT is able to provide three-dimensional (3D) reconstructions of the complex sample permittivity with an increased resolution compared to standard microscopy. In this work, FPT is applied to Coherent anti-Stokes Raman scattering (CARS) imaging. We show on synthetic data that complex third-order susceptibilities can be reconstructed in 3D from a limited number of widefield CARS images. In addition, we observe that the non-linear interaction increases significantly the potential of CARS-FPT compared to linear FPT in terms of resolution. In particular, with a careful choice of the pump and Stokes beam directions, CARS-FPT is able to provide optical sectioning even in transmission configuration.
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Dates et versions

hal-03117616 , version 1 (21-01-2021)

Identifiants

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Sandro Heuke, Hervé Rigneault, Anne Sentenac. 3D-Coherent anti-Stokes Raman scattering Fourier ptychography tomography (CARS-FPT). Optics Express, 2021, 29 (3), pp.4230-4239. ⟨10.1364/OE.416290⟩. ⟨hal-03117616⟩
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