Quantitative phase imaging using dual-wavelength common-path digital holographic microscopy

Author(s):  
Jianglei Di ◽  
Min Xie ◽  
Ying Li ◽  
Jiwei Zhang ◽  
Teli Xi ◽  
...  
2020 ◽  
Vol 10 (16) ◽  
pp. 5602
Author(s):  
Bingcai Liu ◽  
Dasen Wang ◽  
Xueliang Zhu ◽  
Hongjun Wang ◽  
Ailing Tian ◽  
...  

This study proposes a novel wavelength-tuning common-path digital holographic microscopy technique for quantitative phase imaging of functional micro-optics components. The proposed technique is immune to vibration and can reduce system error. In the proposed configuration, a parallel glass plate was inserted into the light path to create two identical test beams, which passed through a specially designed window filter. In this process, one beam serves as the object beam, while the other is diffracted to produce an ideal spherical wave front (the reference beam). A wavelength tunable laser was used as the light source to generate phase-shifting digital holograms. Structural information for the functional micro-optics components was then extracted using a classical four-step phase-shift algorithm. The viability of the proposed technique was assessed by measuring a micro-optics array.


2012 ◽  
Vol 39 (3) ◽  
pp. 0309002 ◽  
Author(s):  
马利红 Ma Lihong ◽  
王辉 Wang Hui ◽  
金洪震 Jin Hongzhen ◽  
李勇 Li Yong

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