Defocus test and defocus correction in full-field optical coherence tomography

preprint2009arXivOpen access

Abstract

We report experimental evidence and correction of defocus in full-field OCT of biological samples due to mismatch of the refractive index of biological tissues and water. Via a metric based on the image quality, we demonstrate that we are able to compensate this index-induced defocus and to recover a sharp image in depth.

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