Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System

Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System

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 correla...

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Main Authors: Yun Liu, Peihua Bu, Mingxing Jiao, Junhong Xing, Ke Kou, Tianhong Lian, Xian Wang, Yumeng Liu
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Photonics
Subjects:
speckle suppression
dynamic speckle illumination
double-moving diffusers
digital holographic microscopy
Online Access:https://www.mdpi.com/2304-6732/8/7/276
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spelling doaj-cd6b2c8ce8884d5598848d0ba8ac1c282021-07-23T14:01:10ZengMDPI AGPhotonics2304-67322021-07-01827627610.3390/photonics8070276Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered SystemYun Liu0Peihua Bu1Mingxing Jiao2Junhong Xing3Ke Kou4Tianhong Lian5Xian Wang6Yumeng Liu7Key Lab of NC Machine Tools and Integrated Manufacturing Equipment of the Education Ministry & Key Lab of Mechanical Manufacturing Equipment of Shaanxi Province, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaThe 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.https://www.mdpi.com/2304-6732/8/7/276speckle suppressiondynamic speckle illuminationdouble-moving diffusersdigital holographic microscopy
collection DOAJ
language English
format Article
sources DOAJ
author Yun Liu
Peihua Bu
Mingxing Jiao
Junhong Xing
Ke Kou
Tianhong Lian
Xian Wang
Yumeng Liu
spellingShingle Yun Liu
Peihua Bu
Mingxing Jiao
Junhong Xing
Ke Kou
Tianhong Lian
Xian Wang
Yumeng Liu
Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System
Photonics
speckle suppression
dynamic speckle illumination
double-moving diffusers
digital holographic microscopy
author_facet Yun Liu
Peihua Bu
Mingxing Jiao
Junhong Xing
Ke Kou
Tianhong Lian
Xian Wang
Yumeng Liu
author_sort Yun Liu
title Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System
title_short Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System
title_full Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System
title_fullStr Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System
title_full_unstemmed Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System
title_sort dynamic speckle illumination digital holographic microscopy by doubly scattered system
publisher MDPI AG
series Photonics
issn 2304-6732
publishDate 2021-07-01
description 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.
topic speckle suppression
dynamic speckle illumination
double-moving diffusers
digital holographic microscopy
url https://www.mdpi.com/2304-6732/8/7/276
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AT peihuabu dynamicspeckleilluminationdigitalholographicmicroscopybydoublyscatteredsystem
AT mingxingjiao dynamicspeckleilluminationdigitalholographicmicroscopybydoublyscatteredsystem
AT junhongxing dynamicspeckleilluminationdigitalholographicmicroscopybydoublyscatteredsystem
AT kekou dynamicspeckleilluminationdigitalholographicmicroscopybydoublyscatteredsystem
AT tianhonglian dynamicspeckleilluminationdigitalholographicmicroscopybydoublyscatteredsystem
AT xianwang dynamicspeckleilluminationdigitalholographicmicroscopybydoublyscatteredsystem
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