Three-Dimensional Imaging of Light-Induced Refractive Index Gratings Using Digital Holographic Microscopy

2010 ◽  
Author(s):  
Chau-Jern Cheng ◽  
Yu-Chih Lin ◽  
Han-Yen Tu
Keyword(s):  
Refractive Index ◽  
Three Dimensional ◽  
Digital Holographic Microscopy ◽  
Three Dimensional Imaging ◽  
Holographic Microscopy

Three Dimensional Imaging Of Cells Through Digital Holographic Microscopy

1984 ◽  
Author(s):  
F. Beltrame ◽  
B. Bianco ◽  
A. Geraci ◽  
G. Laub ◽  
P. Schwarzman
Keyword(s):  
Three Dimensional ◽  
Digital Holographic Microscopy ◽  
Three Dimensional Imaging ◽  
Holographic Microscopy

scholarly journals 3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Majid Panahi ◽  
Ramin Jamali ◽  
Vahideh Farzam Rad ◽  
Mojtaba Khorasani ◽  
Ahamd Darudi ◽  
...  
Keyword(s):  
Slip Length ◽  
Particle Interaction ◽  
Three Dimensional ◽  
Digital Holographic Microscopy ◽  
Particle Sedimentation ◽  
Micro Particles ◽  
Slippage Effect ◽  
Holographic Microscopy ◽  
3D Information ◽  
Experimental Findings

AbstractIn several phenomena in biology and industry, it is required to understand the comprehensive behavior of sedimenting micro-particles in fluids. Here, we use the numerical refocusing feature of digital holographic microscopy (DHM) to investigate the slippage effect on micro-particle sedimentation near a flat wall. DHM provides quantitative phase contrast and three-dimensional (3D) imaging in arbitrary time scales, which suggests it as an elegant approach to investigate various phenomena, including dynamic behavior of colloids. 3D information is obtained by post-processing of the recorded digital holograms. Through analysis of 3D trajectories and velocities of multiple sedimenting micro-particles, we show that proximity to flat walls of higher slip lengths causes faster sedimentation. The effect depends on the ratio of the particle size to (1) the slip length and (2) its distance to the wall. We corroborate our experimental findings by a theoretical model which considers both the proximity and the particle interaction to a wall of different hydrophobicity in the hydrodynamic forces.

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