Articles with "helix point" as a keyword



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Optimization of Fresnel-zones-based Double Helix Point Spread Function and measurement of particle diffusion coefficient

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Published in 2022 at "Optics Communications"

DOI: 10.1016/j.optcom.2021.127411

Abstract: Abstract In the field of microscopic imaging, the double-helix point spread function (DH-PSF) based on the Fresnel zones is often used to locate the three-dimensional position of particles. The lower transfer function efficiency makes it… read more here.

Keywords: diffusion; fresnel; point spread; double helix ... See more keywords
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Double helix point spread function with variable spacing for precise 3D particle localization.

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Published in 2023 at "Optics express"

DOI: 10.1364/oe.482390

Abstract: To extend the axial depth of nanoscale 3D-localization microscopy, we propose here a splicing-type vortex singularities (SVS) phase mask, which has been meticulously optimized with a Fresnel approximation imaging inverse operation. The optimized SVS DH-PSF… read more here.

Keywords: helix point; function; localization; double helix ... See more keywords