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. 2006 Feb 15;31(4):468-70.
doi: 10.1364/ol.31.000468.

Speckles in laser Doppler perfusion imaging

V Rajan  1 , B Varghese, T G van Leeuwen, W Steenbergen
Affiliations

Speckles in laser Doppler perfusion imaging

V Rajan et al. Opt Lett. .

Abstract

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.

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