Holographic method for capillary induced aberration compensation for 3D tomographic measurements of living cells

Julianna Kostencka; Tomasz Kozacki; Arkadiusz Kuś; Michał Dudek; Małgorzata Kujawińska; Björn Kemper

doi:10.1117/12.2020982

23 May 2013 Holographic method for capillary induced aberration compensation for 3D tomographic measurements of living cells

Julianna Kostencka, Tomasz Kozacki, Arkadiusz Kuś, Michał Dudek, Małgorzata Kujawińska, Björn Kemper

Author Affiliations +

Proceedings Volume 8792, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials; 879204 (2013) https://doi.org/10.1117/12.2020982
Event: SPIE Optical Metrology 2013, 2013, Munich, Germany

Abstract

In this paper we present a method for numerical correction of phase images captured in a digital holographic microscopy (DHM) setup adapted to tomographic measurement of biological objects. The purpose of the correction is a removal of the object wave deformation associated with a fluid filled fiber capillary, which is used in DHM system to enable manipulation of a specimen. The proposed correction procedure is based on a simple concept of the phase subtraction, preceded by an estimation of the aberration profile using areas of a hologram that have not been affected by the object. The phase subtraction methodology, developed on the ground of the thin element approximation, is very effective in the visual enhancement of phase images; however, its application to quantitative measurement of micro-objects is questionable. Therefore, in this paper we verify the possible use of the phase subtraction methodology in DHM by performing a numerical experiment, supported with the finite difference time domain method (FDTD), which allows us to identify the residual error of the correction. The FDTD computation reveals that the phase subtraction methodology is insufficient to properly remove the influence of a capillary, in particular to compensate for two effects associated with the focusing properties of the aberration: a transversal shift of the image and the change of its magnification. Nevertheless, the possibility of the visual improvement of holographic images of a living human leukemia cell using the outlined method is demonstrated.

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Julianna Kostencka, Tomasz Kozacki, Arkadiusz Kuś, Michał Dudek, Małgorzata Kujawińska, and Björn Kemper "Holographic method for capillary induced aberration compensation for 3D tomographic measurements of living cells", Proc. SPIE 8792, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials, 879204 (23 May 2013); https://doi.org/10.1117/12.2020982

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