Quasi-physical phase compensation in digital holographic microscopy

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Quasi-physical phase compensation in digital holographic microscopy

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dc.contributor.author Qu, Weijuan
dc.contributor.author Choo, Chee Oi
dc.contributor.author Singh, Vijay Raj
dc.contributor.author Yu, Yingjie
dc.contributor.author Anand, Asundi
dc.date.accessioned 2010-05-12T09:16:12Z
dc.date.available 2010-05-12T09:16:12Z
dc.date.copyright 2009
dc.date.issued 2010-05-12T09:16:12Z
dc.identifier.citation Qu, W., Choo, C. O., Singh, V. R., Yu, Y., & Anand, A. (2009). Quasi-physical phase compensation in digital holographic microscopy. Journal of the Optical Society of America, 26(9), 2005-2011.
dc.identifier.uri http://hdl.handle.net/10220/6284
dc.description.abstract In digital holographic microscopy, if an optical setup is well aligned, the phase curvature introduced by the microscope objective (MO) together with the illuminating wave to the object wave is a spherical phase curvature. It can be physically compensated by introducing the same spherical phase curvature in the reference beam. Digital holographic microscopy setups based on the Michelson interferometric configuration with MO and an adjustable lens are presented, which can well perform the quasi-physical phase compensation during the hologram recording. In the reflection mode, the adjustable lens serves as both the condensing lens and the compensation lens. When the spatial frequency spectra of the hologram become a point spectrum, one can see that the phase curvature introduced by imaging is quasi-physically compensated. A simple plane numerical reference wavefront used for the reconstruction can give the correct quantitative phase map of the test object. A theoretical analysis and experimental demonstration are given. The simplicity of the presented setup makes it easy to align it well at lower cost.
dc.format.extent 7 p.
dc.language.iso en
dc.relation.ispartofseries Journal of the optical society of America
dc.subject DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics.
dc.title Quasi-physical phase compensation in digital holographic microscopy
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.openurl http://sfxna09.hosted.exlibrisgroup.com:3410/ntu/sfxlcl3?sid=metalib:PUBMED&id=doi:&genre=&isbn=&issn=1084-
dc.identifier.openurl http://www.opticsinfobase.org/abstract.cfm?URI=josaa-26-9-2005
dc.identifier.doi http://dx.doi.org/10.1364/JOSAA.26.002005
dc.description.version Published version
dc.identifier.rims 144448

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