Marks Daniel L, Davis Brynmor J, Boppart Stephen A, Scott Carney P
Beckman 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.
J Opt Soc Am A Opt Image Sci Vis. 2009 Feb;26(2):376-86. doi: 10.1364/josaa.26.000376.
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.
针对采用具有部分空间相干性的全场频率扫描照明的光学相干断层扫描和干涉合成孔径显微镜(ISAM)系统,开发了一种模型。该模型用于推导高效的ISAM逆散射算法,这些算法在通常被视为失焦的区域能给出衍射极限分辨率。结果表明,光源的部分空间相干性具有减轻多重散射效应的优势,否则多重散射效应会在全场相干成像中产生显著伪像。