Open AccessAccurate approach to capillary-supported optical diffraction tomography
Author(s) -
Julianna Kostencka,
Tomasz Kozacki,
Arkadiusz Kuś,
Małgorzata Kujawińska
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.007908
Subject(s) - optics , holography , wavefront , tomographic reconstruction , tomography , refraction , optical path , iterative reconstruction , diffraction , image processing , computer science , physics , computer vision , image (mathematics)
A new holographic data processing path for accurate quantitative tomographic reconstruction of 3D samples placed in a cylindrical capillary is proposed. The method considers strong unintentional focusing effects induced by the inner cylindrical boundary of the vessel: 1) introduction of cylindrical wave illumination of a sample, and 2) object wave deformation. The first issue is addressed by developing an arbitrary illumination tomographic reconstruction algorithm based on filtered backpropagation, while the second by a novel correction algorithm utilizing the optical rays analysis. Moreover, the processing path includes a novel holographic method for correction of spherical aberration related to refraction at a planar surface. Utility of the developed data processing path is proven with numerical simulations and experimental measurement of a specially prepared test sample.