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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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/7/276 |
| _version_ | 1797526346058956800 |
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| author | Yun Liu Peihua Bu Mingxing Jiao Junhong Xing Ke Kou Tianhong Lian Xian Wang Yumeng Liu |
| author_facet | Yun Liu Peihua Bu Mingxing Jiao Junhong Xing Ke Kou Tianhong Lian Xian Wang Yumeng Liu |
| author_sort | Yun Liu |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T09:28:34Z |
| format | Article |
| id | doaj.art-cd6b2c8ce8884d5598848d0ba8ac1c28 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T09:28:34Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-cd6b2c8ce8884d5598848d0ba8ac1c282023-11-22T04:42:28ZengMDPI AGPhotonics2304-67322021-07-018727610.3390/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 |
| 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 |
| title | 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_short | Dynamic Speckle Illumination Digital Holographic Microscopy by Doubly Scattered System |
| title_sort | dynamic speckle illumination digital holographic microscopy by doubly scattered system |
| 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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