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Self-generated off-axis holography in interferometric out-of-focus imaging of ice particles

Abstract : Interferometric out-of-focus imaging of ice particles is realized. A review of the recent developments performed to analyse the speckle-like out-of-focus images of rough particles is first proposed. A remaining challenge is the analysis of overlapping out-of-focus images. In a second part, the overlapping defocused images of two nearby ice particles are analysed. If one particle is much smaller than the other one, the pattern constitutes an off-axis hologram whose analysis gives the exact size and shape of the biggest particle. Using two angles of view, we obtain a 3D description of the biggest ice particle.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02110928
Contributor : Marc Brunel <>
Submitted on : Thursday, April 25, 2019 - 4:16:10 PM
Last modification on : Tuesday, April 21, 2020 - 10:26:49 AM

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Mohamed Talbi, Gérard Gréhan, Sébastien Coëtmellec, Marc Brunel. Self-generated off-axis holography in interferometric out-of-focus imaging of ice particles. Journal of Electromagnetic Waves and Applications, Taylor & Francis, 2018, 33 (1), pp.1-17. ⟨10.1080/09205071.2018.1524797⟩. ⟨hal-02110928⟩

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