Holographic tomography with object rotation and two-directional off-axis illumination | Zendy

Julianna Kostencka | Zendy; Tomasz Kozacki | Zendy; Michał Józwik | Zendy

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Holographic tomography with object rotation and two-directional off-axis illumination

Author(s) -

Julianna Kostencka,

Tomasz Kozacki,

Michał Józwik

Publication year - 2017

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.023920

Subject(s) - optics , tomography , holography , rotation (mathematics) , tomographic reconstruction , image resolution , computer science , physics , computer vision

A hybrid system of holographic tomography, which utilizes rotation of a sample and two-directional, off-axis illumination is proposed. The applied type of illumination brings two major benefits. First, it offers theoretical potential for the resolution improvement with respect to conventional tomography. Second, it enables effective, numerical compensation of the defocus error, which is achieved with an accurate, noise-immune autofocusing. Hence, the main practical obstacle of hybrid tomography is removed and its high-resolution potential is put into practice. The utility of the proposed concept is experimentally demonstrated with the tomographic measurement of a photonic crystal fiber.

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