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Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optlaseng.2012.02.002
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dc.titleWhite light interferometry for surface profiling with a colour CCD
dc.contributor.authorKumar, U.P.
dc.contributor.authorHaifeng, W.
dc.contributor.authorMohan, N.K.
dc.contributor.authorKothiyal, M.P.
dc.date.accessioned2014-10-16T09:48:47Z
dc.date.available2014-10-16T09:48:47Z
dc.date.issued2012-08
dc.identifier.citationKumar, U.P., Haifeng, W., Mohan, N.K., Kothiyal, M.P. (2012-08). White light interferometry for surface profiling with a colour CCD. Optics and Lasers in Engineering 50 (8) : 1084-1088. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optlaseng.2012.02.002
dc.identifier.issn01438166
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98582
dc.description.abstractIn laser based interferometry, the unambiguous measurement range is limited to half a wavelength. Multiple wavelength or white light interferometer is used to overcome this difficulty. In this paper a white light interferometer with a colour CCD camera is discussed. We access interference intensity information from the three channels of the colour CCD simulating three-wavelength measurement. This makes the data acquisition as simple as in single wavelength interferometry. The unambiguous measurement range however gets limited by the coherence length of the CCD. The usefulness of the proposed method is demonstrated on a micro-sample. © 2012 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.optlaseng.2012.02.002
dc.sourceScopus
dc.subjectFringe analysis
dc.subjectPhase shifting
dc.subjectSingle-chip colour CCD camera
dc.subjectSurface profiling
dc.subjectWhite light interferometry
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1016/j.optlaseng.2012.02.002
dc.description.sourcetitleOptics and Lasers in Engineering
dc.description.volume50
dc.description.issue8
dc.description.page1084-1088
dc.description.codenOLEND
dc.identifier.isiut000304638200013
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