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Dual-view tomographic particle holography: Modeling and light scattering effects
Journal of Quantitative Spectroscopy and Radiative Transfer ( IF 2.3 ) Pub Date : 2020-07-28 , DOI: 10.1016/j.jqsrt.2020.107232
Yingchun Wu , Hongyu Zhang , Xuecheng Wu , Kefa Cen

Dual-view tomographic particle holography, combining tomography and holography, is a promising approach to yield high accurate 3D measurement of particle field. A standard model of particle hologram has been developed in the framework of generalized Lorenz-Mie theory to model and investigate the light scattering effects on three configurations of dual-view tomographic particle holography, that is, dual-beam dual-view Gabor inline holography, single beam dual-view combining Gabor inline holography with off-axis scattering holography, and single beam dual-view off-axis scattering holography. Dual-beam dual-view Gabor inline holography is dominated by the traditional Gabor inline hologram, but the two light scattering fields bring about small amplitude off-axis scattering inline recording hologram, negligible self-reference hologram and lensless Fourier hologram. The off-axis scattering inline recording hologram can produce additional glare points in the reconstructed particle image. The off-axis scattering holography reconstructs multiple glare light, and generates more than one intersections in the merged 3D reconstructed field in tomographic particle holography, leading to possible ghost particle image and implying new algorithm for particle detection to be developed. This model can provide standard hologram to processing algorithm development.



中文翻译:

双视图断层摄影粒子全息术:建模和光散射效果

结合层析成像和全息照相技术的双视图层析粒子全息术是一种产生高精确度3D粒子场测量的有前途的方法。在广义的Lorenz-Mie理论框架内开发了一个标准的粒子全息图模型,以建模和研究光对双视图层析X射线全息图的三种配置的散射效应,即双光束双视图Gabor在线全息图,单光束双视图结合了Gabor在线全息技术和离轴散射全息技术,以及单光束双视图离轴散射全息技术。传统的Gabor在线全息图主导了双光束双视图Gabor在线全息图,但是两个光散射场带来了小振幅离轴散射在线记录全息图,可忽略的自参考全息图和无透镜傅立叶全息图。离轴散射在线记录全息图可以在重建的粒子图像中产生其他眩光点。离轴散射全息图可重建多个眩光,并在断层摄影粒子全息图中的合并3D重建场中生成多个交点,从而可能产生幻影粒子图像,这意味着需要开发新的粒子检测算法。该模型可以为处理算法的开发提供标准的全息图。并在断层摄影粒子全息中在合并的3D重构场中生成多个交点,从而导致可能出现的幻影粒子图像,这意味着需要开发新的粒子检测算法。该模型可以为处理算法的开发提供标准的全息图。并在断层摄影粒子全息中在合并的3D重构场中生成多个交点,从而导致可能出现的幻影粒子图像,这意味着需要开发新的粒子检测算法。该模型可以为处理算法的开发提供标准的全息图。

更新日期:2020-07-28
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