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11 March 2020 Optimization-based optical diffraction tomography with spatially incoherent illumination (Conference Presentation)
Seth D. Smith-Dryden, Shengli Fan, Bahaa E. A. Saleh, Guifang Li
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Proceedings Volume 11249, Quantitative Phase Imaging VI; 112490D (2020) https://doi.org/10.1117/12.2546625
Event: SPIE BiOS, 2020, San Francisco, California, United States
Abstract
Typical quantitative refractive index (RI) imaging methods (e.g. optical diffraction tomography) use coherent illumination and interferometric detection to reconstruct 3D phase objects. We have developed a new technique to perform accurate ODT reconstructions using spatially incoherent illumination. This technique reconstructs the RI by minimizing the difference between simulated and interferometrically measured cross-correlation between the diffracted field and a reference image of the illumination, using the fast iterative shrinkage / thresholding algorithm (FISTA) framework. We numerically validate this technique by comparing results obtained with spatially incoherent illumination, to those obtained with coherent illumination, and obtain high-resolution reconstructions of similar quality.
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Seth D. Smith-Dryden, Shengli Fan, Bahaa E. A. Saleh, and Guifang Li "Optimization-based optical diffraction tomography with spatially incoherent illumination (Conference Presentation)", Proc. SPIE 11249, Quantitative Phase Imaging VI, 112490D (11 March 2020); https://doi.org/10.1117/12.2546625
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KEYWORDS
Tomography
Diffraction
Optical tomography
Algorithm development
3D metrology
Detection and tracking algorithms
Reconstruction algorithms
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