Two-step phase shifting differential-recording digital holographic microscopy

Abstract We present two-step phase-shifting differential-recording digital holographic microscopy (TPD-DH in microscopy) for phase imaging of microscopic transparent elements. Two CCDs are employed to record two interferograms at two different defocusing distances. The interferograms on the two CCD...

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Autores principales:	Jun-He Han, Ruo-Ping Li, Jun-Hui Liu, Fu-Sheng Hai, Ming-Ju Huang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dd6942ff52f74daaa88a39eaff1dce4a
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spelling	oai:doaj.org-article:dd6942ff52f74daaa88a39eaff1dce4a2021-12-02T11:52:32ZTwo-step phase shifting differential-recording digital holographic microscopy10.1038/s41598-017-02093-52045-2322https://doaj.org/article/dd6942ff52f74daaa88a39eaff1dce4a2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02093-5https://doaj.org/toc/2045-2322Abstract We present two-step phase-shifting differential-recording digital holographic microscopy (TPD-DH in microscopy) for phase imaging of microscopic transparent elements. Two CCDs are employed to record two interferograms at two different defocusing distances. The interferograms on the two CCD cameras are shifted for a phase retarder 0 and π via an all-optics phase shifting unit. A novel algorithm is proposed to reconstruct both amplitude and phase distributions of the object wave from the recorded interferograms. This method has the same spectrum bandwidth and measurement accuracy with those of conventional four-step phase-shifting interferometry (FS-PSI), whereas it reduces the measurement time by half.Jun-He HanRuo-Ping LiJun-Hui LiuFu-Sheng HaiMing-Ju HuangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jun-He Han Ruo-Ping Li Jun-Hui Liu Fu-Sheng Hai Ming-Ju Huang Two-step phase shifting differential-recording digital holographic microscopy
description	Abstract We present two-step phase-shifting differential-recording digital holographic microscopy (TPD-DH in microscopy) for phase imaging of microscopic transparent elements. Two CCDs are employed to record two interferograms at two different defocusing distances. The interferograms on the two CCD cameras are shifted for a phase retarder 0 and π via an all-optics phase shifting unit. A novel algorithm is proposed to reconstruct both amplitude and phase distributions of the object wave from the recorded interferograms. This method has the same spectrum bandwidth and measurement accuracy with those of conventional four-step phase-shifting interferometry (FS-PSI), whereas it reduces the measurement time by half.
format	article
author	Jun-He Han Ruo-Ping Li Jun-Hui Liu Fu-Sheng Hai Ming-Ju Huang
author_facet	Jun-He Han Ruo-Ping Li Jun-Hui Liu Fu-Sheng Hai Ming-Ju Huang
author_sort	Jun-He Han
title	Two-step phase shifting differential-recording digital holographic microscopy
title_short	Two-step phase shifting differential-recording digital holographic microscopy
title_full	Two-step phase shifting differential-recording digital holographic microscopy
title_fullStr	Two-step phase shifting differential-recording digital holographic microscopy
title_full_unstemmed	Two-step phase shifting differential-recording digital holographic microscopy
title_sort	two-step phase shifting differential-recording digital holographic microscopy
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/dd6942ff52f74daaa88a39eaff1dce4a
work_keys_str_mv	AT junhehan twostepphaseshiftingdifferentialrecordingdigitalholographicmicroscopy AT ruopingli twostepphaseshiftingdifferentialrecordingdigitalholographicmicroscopy AT junhuiliu twostepphaseshiftingdifferentialrecordingdigitalholographicmicroscopy AT fushenghai twostepphaseshiftingdifferentialrecordingdigitalholographicmicroscopy AT mingjuhuang twostepphaseshiftingdifferentialrecordingdigitalholographicmicroscopy
_version_	1718395015290421248

Two-step phase shifting differential-recording digital holographic microscopy

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