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J Opt Soc Am A Opt Image Sci Vis. 2009 Feb;26(2):376-86.

Partially coherent illumination in full-field interferometric synthetic aperture microscopy.

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  • 1Beckman Institute for Advanced Science and Technology and the Department of Electrical and ComputerEngineering, University of Illinois at Urbana-Champaign, 405 North Mathews, Urbana, Illinois 61801, USA.


A model is developed for optical coherence tomography and interferometric synthetic aperture microscopy (ISAM) systems employing full-field frequency-scanned illumination with partial spatial coherence. This model is used to derive efficient ISAM inverse scattering algorithms that give diffraction-limited resolution in regions typically regarded as out of focus. Partial spatial coherence of the source is shown to have the advantage of mitigating multiple-scattering effects that can otherwise produce significant artifacts in full-field coherent imaging.

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