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Proceedings Paper

A novel phase retrieval and reconstruction method in optical diffraction tomography
Author(s): Shuo Cao; Xing Lv; Qiang Chen; Guanghui Wang; Jiabi Chen
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Paper Abstract

Optical diffraction tomography is an important method to obtain the microstructure of biological samples. We present a reconstruction process for the 3D refractive index distribution of samples in optical diffraction tomography. First, obtaining an accurate phase image by preprocessing the interference image is especially important for the reconstruction. The quality oriented method is used to perform phase unwrapping to avoid the influence of residual error. Then, the background phase is eliminated by curve fitting method, which reduces the experimental complexity and requirements. The positional deviation caused by the rotation of the sample is solved by autocorrelation algorithm. We apply a filtered back propagation algorithm based on Fourier diffraction theory to improve the accuracy of reconstruction. Finally, we have carried out experiments on samples such as photonic crystal fiber and pollen, and obtained the detailed internal structure of the samples with satisfactory results.

Paper Details

Date Published: 18 November 2019
PDF: 8 pages
Proc. SPIE 11188, Holography, Diffractive Optics, and Applications IX, 111880K (18 November 2019); doi: 10.1117/12.2537659
Show Author Affiliations
Shuo Cao, Nanjing Univ. (China)
Xing Lv, Nanjing Univ. (China)
Qiang Chen, Nanjing Univ. (China)
Guanghui Wang, Nanjing Univ. (China)
Jiabi Chen, Nanjing Univ. (China)

Published in SPIE Proceedings Vol. 11188:
Holography, Diffractive Optics, and Applications IX
Yunlong Sheng; Changhe Zhou; Liangcai Cao, Editor(s)

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