Accurate shape measurement of focusing microstructures in Fourier digital holographic microscopy

2017 ◽  
Vol 57 (1) ◽  
pp. A197 ◽  
Author(s):  
Marta Mikuła ◽  
Tomasz Kozacki ◽  
Michał Józwik ◽  
Julianna Kostencka
Keyword(s):  
Digital Holographic Microscopy ◽  
Shape Measurement ◽  
Holographic Microscopy

Antifouling mechanism of natural product-based coatings investigated by digital holographic microscopy

2021 ◽  
Vol 84 ◽  
pp. 200-207
Author(s):  
Jiansen Pan ◽  
Qingmei Peng ◽  
Guoliang Zhang ◽  
Qingyi Xie ◽  
Xiangjun Gong ◽  
...  
Keyword(s):  
Natural Product ◽  
Digital Holographic Microscopy ◽  
Holographic Microscopy

scholarly journals Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 276
Author(s):  
Yun Liu ◽  
Peihua Bu ◽  
Mingxing Jiao ◽  
Junhong Xing ◽  
Ke Kou ◽  
...  
Keyword(s):  
Time Correlation ◽  
Digital Holographic Microscopy ◽  
Laser Source ◽  
Speckle Reduction ◽  
Single Shot ◽  
Coherent Noise ◽  
Real Time Measurement ◽  
Dynamic Speckle ◽  
Holographic Microscopy ◽  
Speckle Suppression

The coherent noise always exists in digital holographic microscopy due to the laser source, degrading the image quality. A method of speckle suppression using the dynamic speckle illumination, produced by double-moving diffusers, is presented in digital holographic microscopy. The space–time correlation functions are theoretically analyzed from the statistics distribution in the doubly and singly scattered system, respectively. The configuration of double-moving diffusers is demonstrated to have better performance in speckle suppression compared with the single diffuser and moving-static double diffusers cases. The experiment results verify the feasibility of the approach. The presented approach only requires a single shot interferogram to realize the speckle reduction, accordingly it has the potential application in real-time measurement.

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