Speckles in Laser Doppler Perfusion Imaging

Vinayakrishnan Rajan, Babu Varghese, Ton van Leeuwen, Wiendelt Steenbergen

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We report on the quantitative influence of speckles in laser Doppler perfusion imaging. The influence of speckles on the signal amplitude and on the Doppler spectrum is demonstrated experimentally for particle suspensions with different scattering levels and various beam widths. It is shown that the type of tissue affects the instrumental response through the effect of lateral light diffusion on the number of speckles involved in the detection process. These effects are largest for narrow beams.
Original languageUndefined
Pages (from-to)468-470
Number of pages3
JournalOptics letters
Issue number4
Publication statusPublished - 2006


  • IR-57562
  • METIS-236144

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