Influence of multiple scattering on the image quality obtained with optical coherence microscopy

摘要

Abstract: Optical coherence microcopy (OCM) is a new method for optical and near-infrared imaging of biological tissues. This method is based on the detection of least-back-scattering light that maintain coherence and has thus spend shortest time that its path-length difference $Delta@L falling within the coherence length L$-c$/ of the low-coherence source. This paper points out that there are also a special part of multiple scattering light which has the sufficient small part length differences $Delta@L falling within the coherence L$-c$/. The effects of this part of multiple scattering light can be divided into two categories. One is nonlinear effects and the other is speckle effects. !11