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Manifestation of aberrations in full-field optical coherence tomography

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Barolle, Victor | Scholler, Jules | Mecê, Pedro | Chassot, Jean-Marie | Groux, Kassandra | Fink, Mathias | Boccara, A. Claude | Aubry, Alexandre

Edité par CCSD ; Optical Society of America - OSA Publishing -

23 pages, 10 figures. International audience. We report on a theoretical model for image formation in full-field optical coherence tomography (FFOCT). Because the spatial incoherence of the illumination acts as a virtual confocal pinhole in FFOCT, its imaging performance is equivalent to a scanning time-gated coherent confocal microscope. In agreement with optical experiments enabling a precise control of aberrations, FFOCT is shown to have nearly twice the resolution of standard imaging at moderate aberration level. Beyond a rigorous study on the sensitivity of FFOCT with respect to aberrations, this theoretical model paves the way towards an optimized design of adaptive optics schemes for high-resolution and deep imaging of biological tissues.

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