Digital in-line holography for the characterization of flowing particles in astigmatic optical systems
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- 作者：Matthias P.L. Sentisa ; Laurent Bruelb ; Sophie Chartona ; Fabrice R.A. Onofric ; Fabrice Lamadiea ; fabrice.lamadie@cea.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Digital in-line holography ; Astigmatic optical systems ; Generalized Fresnel transform ; Best fitting approach ; Focusing method
- 刊名：Optics and Lasers in Engineering
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：88
- 期：Complete
- 页码：184-196
- 全文大小：4876 K
文摘
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A model to simulate holograms in astigmatic optical system is proposed.
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A generalized convolution method allows reconstructing particle holograms.
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A best fitting approach allows particles positions and diameters assessment.
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Particle position along the optical axis is improved by localizing the focus region.
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The method is validated on a cylindrical liquid/liquid extracting device.