Specifications
相对较大的样本中微观粒子高分辨率、高放大率全息成像
能大幅增加可获取对焦图像的景深（> 1000倍）
Kirchoff-Fresnel卷积内核对数码相机记录的全息图进行数值重建
自动图像技术计算粒径及粒子浓度
Applibation
表征水体中微观粒子的分布和相互作用
粒子流相互作用、动力学研究
表征水生颗粒特性，颗粒粒径分布、颗粒物浓度
Parameter
激光波长：660 nm
图像分辨率：1.27 μm/pixel
每帧成像体积：80 μL
相机：Mightex Systems USB 3.0单色500万像素相机，传感器像素尺寸2.2 μm，分辨率2560 ×1920 px，帧率14 fps
References
A.R. Nayak, M. McFarland, J. Sullivan and M. Twardowski (2018), “Evidence of ubiquitous preferential particle orientation in representative oceanic shear flows,” Limnology & Oceanography, 63(1), 122-143.
S. Talapatra, J. Hong, M. McFarland, A.R. Nayak, C. Zhang, J. Katz, J. Sullivan, M. Twardowski, J. Rines, P. Donaghay (2013), “Characterization of biophysical interactions in the water column using in situ digital holography,” Marine Ecology Progress Series, 473, 29-51.
Katz, J., Sheng, J. (2010), “Applications of Holography in Fluid Mechanics and Particle Dynamics,” Annual Review of Fluid Mechanics 42, 531–555.
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