Compound speckles and their statistical and dynamical properties

Steen Grüner Hanson (Invited author), Michael Linde Jakobsen (Invited author), Rene Skov Hansen (Invited author), Harald Yura (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Two issues will be treated in this presentation, both focusing on gaining a deeper understanding of dynamic speckles, aiming at the use for probing dynamical properties of scattering structures. The first issue to be addressed is the dynamics of speckles arising from illuminating a solid surface giving rise to fully developed speckle with two mutually separated beams. It will be shown that usually the speckle pattern will consist of larger speckles with an inherent fine structure, each of which will usually be moving with different velocity. Next, the dynamics of the speckle pattern arising from scattering off a diffuser as seen through a second static diffuser is analyzed. Here, it is shown that the second and static diffuser will act as a pivot point about which the speckles will move. This facilitates a scaling of the speckle displacement facilitating a very minute measurement of the displacement of the first diffuser.
Original languageEnglish
Title of host publicationProceedings
Place of PublicationBellingham
PublisherSPIE - International Society for Optical Engineering
Publication date2008
ISBN (Print)08-19-47218-2
Publication statusPublished - 2008
Event8th International Conference on Correlation Optics - Chernivtsi, Ukraine
Duration: 11 Sep 200714 Sep 2007
Conference number: 8


Conference8th International Conference on Correlation Optics
SeriesProceedings of SPIE, the International Society for Optical Engineering


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