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 Sept 200714 Sept 2007
    Conference number: 8


    Conference8th International Conference on Correlation Optics
    SeriesProceedings of SPIE - The International Society for Optical Engineering


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