Pub Date : 2019-06-24DOI: 10.1364/COSI.2019.CW4A.5
M. Trusiak, K. Patorski, P. Zdańkowski, Maria Cywińska, V. Micó, J. Picazo-Bueno, Javier García
The approach to convert a brightfield microscope into an interference-based versatile quantitative phase imaging unit is presented. It employs partially coherent illumination and diffraction grating. Enhanced interferogram bio-phase retrieval is performed by two-shot numerically-robust Hilbert-Huang method.
{"title":"Upgrading a brightfield optical microscope into a robust numerically advanced interference-based phase imager","authors":"M. Trusiak, K. Patorski, P. Zdańkowski, Maria Cywińska, V. Micó, J. Picazo-Bueno, Javier García","doi":"10.1364/COSI.2019.CW4A.5","DOIUrl":"https://doi.org/10.1364/COSI.2019.CW4A.5","url":null,"abstract":"The approach to convert a brightfield microscope into an interference-based versatile quantitative phase imaging unit is presented. It employs partially coherent illumination and diffraction grating. Enhanced interferogram bio-phase retrieval is performed by two-shot numerically-robust Hilbert-Huang method.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114892184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/PCAOP.2019.PTH2D.5
V. Venediktov
The paper overviews the results of several seasons of investigation of optical beams propagation along the in-door (artificial) beam path with the length of several hundred meters. Special attention was paid to investigation of evolution of optical vortices with the large (up to 10) topological charge.
{"title":"Experimental Investigation of Gaussian and Vortex Beam Propagation in an Extremely Calm In-Door Atmospere","authors":"V. Venediktov","doi":"10.1364/PCAOP.2019.PTH2D.5","DOIUrl":"https://doi.org/10.1364/PCAOP.2019.PTH2D.5","url":null,"abstract":"The paper overviews the results of several seasons of investigation of optical beams propagation along the in-door (artificial) beam path with the length of several hundred meters. Special attention was paid to investigation of evolution of optical vortices with the large (up to 10) topological charge.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114307756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/COSI.2019.JW2A.2
J. Picazo-Bueno, V. Micó
We present reflective SMIM (initials incoming from Spatially-Multiplexed Interferometric Microscopy) as an extremely simple and low cost way to convert a standard white-light microscope into a holographic one working under reflection imaging mode.
{"title":"SMIM in reflection imaging mode","authors":"J. Picazo-Bueno, V. Micó","doi":"10.1364/COSI.2019.JW2A.2","DOIUrl":"https://doi.org/10.1364/COSI.2019.JW2A.2","url":null,"abstract":"We present reflective SMIM (initials incoming from Spatially-Multiplexed Interferometric Microscopy) as an extremely simple and low cost way to convert a standard white-light microscope into a holographic one working under reflection imaging mode.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"13 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133076408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/PCAOP.2019.PTH2D.4
J. Garnier, K. Sølna
When (laser) beams propagate through atmospheric turbulence in the scintillation regime the beam exhibits anomalous spreading and gradually becomes incoherent due to scattering and eventually forms a speckle pattern. We characterize here the scintillation scaling regime for beams and describe the beam transformation via a moment theory.
{"title":"Beaming Through Turbulence","authors":"J. Garnier, K. Sølna","doi":"10.1364/PCAOP.2019.PTH2D.4","DOIUrl":"https://doi.org/10.1364/PCAOP.2019.PTH2D.4","url":null,"abstract":"When (laser) beams propagate through atmospheric turbulence in the scintillation regime the beam exhibits anomalous spreading and gradually becomes incoherent due to scattering and eventually forms a speckle pattern. We characterize here the scintillation scaling regime for beams and describe the beam transformation via a moment theory.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130592508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/PCAOP.2019.PTH3C.5
Frank Sanzone, Bruce Berry, Sara B. Belichki, Melissa Beason, Joseph T. Coffaro, Christopher Smith, Jonathan Spychalsky, Franklin Titus, R. Crabbs, R. Phillips, L. Andrews, J. Shields
A single pixel infrared camera is developed utilizing digital micromirror technology. The imager is applied to determination of atmospheric extinction and other meteorological parameters. Experimental evidence demonstrates agreement with forward-scatter based visibility measurements.
{"title":"A Single Pixel Infrared Camera for Atmospheric Extinction Measurements","authors":"Frank Sanzone, Bruce Berry, Sara B. Belichki, Melissa Beason, Joseph T. Coffaro, Christopher Smith, Jonathan Spychalsky, Franklin Titus, R. Crabbs, R. Phillips, L. Andrews, J. Shields","doi":"10.1364/PCAOP.2019.PTH3C.5","DOIUrl":"https://doi.org/10.1364/PCAOP.2019.PTH3C.5","url":null,"abstract":"A single pixel infrared camera is developed utilizing digital micromirror technology. The imager is applied to determination of atmospheric extinction and other meteorological parameters. Experimental evidence demonstrates agreement with forward-scatter based visibility measurements.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124655590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/COSI.2019.CTH2A.3
C. Callenberg, A. Lyons, D. D. Brok, R. Henderson, M. Hullin, D. Faccio
High temporal resolution SPAD imagers are currently limited by their pixel count. Here we show that data can be combined with a higher spatial resolution EMCCD camera to achieve the advantages of both.
{"title":"EMCCD-SPAD Camera data fusion for high spatial resolution time-of-flight imaging.","authors":"C. Callenberg, A. Lyons, D. D. Brok, R. Henderson, M. Hullin, D. Faccio","doi":"10.1364/COSI.2019.CTH2A.3","DOIUrl":"https://doi.org/10.1364/COSI.2019.CTH2A.3","url":null,"abstract":"High temporal resolution SPAD imagers are currently limited by their pixel count. Here we show that data can be combined with a higher spatial resolution EMCCD camera to achieve the advantages of both.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125590256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/COSI.2019.CW3A.2
D. Gardner, Shawn Divitt, A. Watnik
We image extended samples using speckle correlations. To enable this advance, we collected several speckle patterns from a sample while it is raster-scanned through the pseudothermal illumination and use ptychography to reconstruct an image.
{"title":"Spatially-Incoherent Lensless Imaging of Extended Objects Using Speckle Correlations and Ptychography","authors":"D. Gardner, Shawn Divitt, A. Watnik","doi":"10.1364/COSI.2019.CW3A.2","DOIUrl":"https://doi.org/10.1364/COSI.2019.CW3A.2","url":null,"abstract":"We image extended samples using speckle correlations. To enable this advance, we collected several speckle patterns from a sample while it is raster-scanned through the pseudothermal illumination and use ptychography to reconstruct an image.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130047662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/PCAOP.2019.PTH2D.6
M. Charnotskii
We present a review of the recently developed theory of the total beam OAM fluctuations and fluctuations of the OAM intercepted by a finite aperture both for weak and strong scintillations in the incident wave.
本文综述了近年来发展起来的总波束OAM涨落理论和有限孔径拦截的入射波中弱和强闪烁的OAM涨落理论。
{"title":"OAM of beams and waves and atmospheric turbulence","authors":"M. Charnotskii","doi":"10.1364/PCAOP.2019.PTH2D.6","DOIUrl":"https://doi.org/10.1364/PCAOP.2019.PTH2D.6","url":null,"abstract":"We present a review of the recently developed theory of the total beam OAM fluctuations and fluctuations of the OAM intercepted by a finite aperture both for weak and strong scintillations in the incident wave.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127600892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sensitivity analysis interprets why correspondence ghost imaging can restore better images by fewer reference patterns of larger bucket fluctuation: these selected patterns are the more alike ones with regard to the target.
{"title":"Few but alike: how correspondence ghost imaging works","authors":"Zhe Han, Junhui Li, Dongyue Yang, Qian Peng, Huixia Mo, Guohua Wu","doi":"10.1364/COSI.2019.JW2A.12","DOIUrl":"https://doi.org/10.1364/COSI.2019.JW2A.12","url":null,"abstract":"Sensitivity analysis interprets why correspondence ghost imaging can restore better images by fewer reference patterns of larger bucket fluctuation: these selected patterns are the more alike ones with regard to the target.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124449574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-24DOI: 10.1364/COSI.2019.JW2A.15
Chen Chang, Dongyue Yang, Junhui Li, Guohua Wu, Bin Luo, Longfei Yin, Hong Guo
In ghost imaging with pseudo-thermal light, Hessian enhancement filter is applied in reference measurements to improve the image quality by reducing the motion blur caused by improper exposure settings at short coherence time.
{"title":"Reducing motion blur in ghost imaging with Hessian enhancement filter","authors":"Chen Chang, Dongyue Yang, Junhui Li, Guohua Wu, Bin Luo, Longfei Yin, Hong Guo","doi":"10.1364/COSI.2019.JW2A.15","DOIUrl":"https://doi.org/10.1364/COSI.2019.JW2A.15","url":null,"abstract":"In ghost imaging with pseudo-thermal light, Hessian enhancement filter is applied in reference measurements to improve the image quality by reducing the motion blur caused by improper exposure settings at short coherence time.","PeriodicalId":123636,"journal":{"name":"Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121332836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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