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Opt Lett. 2009 May 15;34(10):1576-8.

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

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  • 1Institut Langevin, Ecole SupĂ©rieure de Physique et de Chimie Industrielles, CNRS UMR 7587, Laboratoire d'Optique Physique, 10 rue Vauquelin, 75231 Paris Cedex 05, France.

Abstract

We report experimental evidence and correction of defocus in full-field optical coherence tomography of biological samples owing 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.

PMID:
19448826
[PubMed - indexed for MEDLINE]
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