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5 March 2021 Wolf phase tomography (WPT) of transparent structures using partially coherent illumination
Xi Chen, Mikhail Kandel, Chenfei Hu, Young Jae Lee, Gabriel Popescu
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Proceedings Volume 11653, Quantitative Phase Imaging VII; 1165303 (2021) https://doi.org/10.1117/12.2582903
Event: SPIE BiOS, 2021, Online Only
Abstract
We proposed a fast 3D RI construction method, based on the Wolf equations for propagating correlations of partially coherent light. This approach, referred to as Wolf phase tomography (WPT), involves minimal computational steps, renders high-resolution RI tomograms, without time-consuming deconvolution operations. WPT decouples the refractive index distribution from the thickness of the sample directly in the space-time domain, without the need for Fourier transformation. We demonstrate that, from three independent intensity measurements corresponding to each phase shift, the RI distribution is reconstructed directly from the Laplacian and second time derivative of the complex correlation functions.
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Xi Chen, Mikhail Kandel, Chenfei Hu, Young Jae Lee, and Gabriel Popescu "Wolf phase tomography (WPT) of transparent structures using partially coherent illumination", Proc. SPIE 11653, Quantitative Phase Imaging VII, 1165303 (5 March 2021); https://doi.org/10.1117/12.2582903
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KEYWORDS
Tomography
3D metrology
Diffraction
Refractive index
Correlation function
Data acquisition
Microscopes
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