scholarly journals Single-shot digital holographic microscopy with a modified lateral-shearing interferometer based on computational telecentricity

2017 ◽  
Vol 25 (6) ◽  
pp. 6151 ◽  
Author(s):  
Byung-Mok Kim ◽  
Seong-Jin Park ◽  
Eun-Soo Kim
Keyword(s):  
Digital Holographic Microscopy ◽  
Single Shot ◽  
Lateral Shearing Interferometer ◽  
Lateral Shearing ◽  
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.

scholarly journals Single-Element Reflective Digital Holographic Microscopy

2021 ◽  
Vol 9 ◽  
Author(s):  
José Ángel Picazo-Bueno ◽  
Javier García ◽  
Vicente Micó
Keyword(s):  
Low Cost ◽  
Digital Holographic Microscopy ◽  
Single Element ◽  
Phase Imaging ◽  
Single Shot ◽  
One Dimensional ◽  
Common Path ◽  
Microscopy Technique ◽  
Digital Holograms ◽  
Holographic Microscopy

Digital holographic microscopy (DHM) is a well-known microscopy technique using an interferometric architecture for quantitative phase imaging (QPI) and it has been already implemented utilizing a large number of interferometers. Among them, single-element interferometers are of particular interest due to its simplicity, stability, and low cost. Here, we present an extremely simple common-path interferometric layout based on the use of a single one-dimensional diffraction grating for both illuminating the sample in reflection and generating the digital holograms. The technique, named single-element reflective digital holographic microscopy (SER-DHM), enables QPI and topography analysis of reflective/opaque objects using a single-shot operation principle. SER-DHM is experimentally validated involving different reflective samples.

Detection of airborne nanoparticles with lateral shearing digital holographic microscopy

2022 ◽  
Vol 151 ◽  
pp. 106934
Author(s):  
Gulhan Ustabas Kaya ◽  
Sefa Kocabas ◽  
Seda Kartal ◽  
Hakan Kaya ◽  
Ishak Ozel Tekin ◽  
...  
Keyword(s):  
Digital Holographic Microscopy ◽  
Lateral Shearing ◽  
Airborne Nanoparticles ◽  
Holographic Microscopy

scholarly journals Lateral shearing common-path digital holographic microscopy based on a slightly trapezoid Sagnac interferometer

2017 ◽  
Vol 25 (12) ◽  
pp. 13659 ◽  
Author(s):  
Chaojie Ma ◽  
Ying Li ◽  
Jiwei Zhang ◽  
Peng Li ◽  
Teli Xi ◽  
...  
Keyword(s):  
Digital Holographic Microscopy ◽  
Sagnac Interferometer ◽  
Common Path ◽  
Lateral Shearing ◽  
Holographic Microscopy
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