21 April 2016 Numerical focusing in diffraction phase microscopy
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Diffraction phase microscopy (DPM) provides the possibility of high-resolution quantitative phase imaging, based on equipment of an optical microscope with a special module working in a common-path off-axis configuration. As an optical microscopy technique, DPM has a limited focus depth, which is the smaller the higher is the objective's numerical aperture. In this paper we present the results of experimental investigation of numerical focusing with the angular spectrum method in DPM.
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N. A. Talaikova, N. A. Talaikova, A. A. Grebenyuk, A. A. Grebenyuk, A. L. Kalyanov, A. L. Kalyanov, V. P. Ryabukho, V. P. Ryabukho, "Numerical focusing in diffraction phase microscopy", Proc. SPIE 9917, Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS), 99171V (21 April 2016); doi: 10.1117/12.2229881; https://doi.org/10.1117/12.2229881

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