Chinese Journal of Lasers, Volume. 33, Issue 11, 1477(2006)

Femtosecond Laser Speckle Cross-Correlation Technique

[in Chinese]1,2、* and [in Chinese]1
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  • 1[in Chinese]
  • 2[in Chinese]
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    Displacement of the scattering media from speckle information can be obtained. So a novel femtosecond laser speckle technique was proposed. For measuring the displacement of a scattering object by using two images which are taken before and after the object moved. Since the two images are recorded by a charge coupled device (CCD) camera and stored on separate frames in computer, it is possible to use a cross-correlation algorithm to determine the displacement field in real-time. In experiment, displacement of the scattering media is in agreement with the result obtained by cross-correlation algorithm. It is shown that femtosecond laser speckle cross-correlation technique should be a useful for measuring the movement of a scattering object under femtosecond laser illumination.

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    [in Chinese], [in Chinese]. Femtosecond Laser Speckle Cross-Correlation Technique[J]. Chinese Journal of Lasers, 2006, 33(11): 1477

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    Paper Information

    Category: laser devices and laser physics

    Received: Apr. 5, 2006

    Accepted: --

    Published Online: Nov. 20, 2006

    The Author Email: (liuwenjun68@siom.ac.cn)

    DOI:

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