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Dynamic properties of multispectral speckles in digital holography and image correlation
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0003-4879-8261
2013 (English)In: Optical Engineering: The Journal of SPIE, ISSN 0091-3286, E-ISSN 1560-2303, Vol. 52, no 10, article id 101908Article in journal (Refereed) Published
Abstract [en]

I discuss dynamic properties of multispectral speckle in the context of digital holographic interferometry and image correlation. I outline the correlation of speckles in free space, in an imaging system, and, in the case of interferometric detection, caused by reflection off an inclined diffuse surface. It is shown that interferometric phase gradients and speckle movements are closely related where in fact the phase gradients are the generator of speckle movements in a defocused plane. The theory is exemplified by three typical situations encountered in image-plane digital holographic interferometry.

Place, publisher, year, edition, pages
2013. Vol. 52, no 10, article id 101908
National Category
Applied Mechanics
Research subject
Experimental Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-4544DOI: 10.1117/1.OE.52.10.101908Local ID: 28064dc0-45bb-42f7-ad14-d8deaa0f927bOAI: oai:DiVA.org:ltu-4544DiVA: diva2:977418
Note
Validerad; 2013; 20131211 (mike)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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