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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1993),
  • paper CTuN86

Intensity attenuation of the transmitted light pulse at various arrival time intervals through biological tissues

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Abstract

The time-resolved method is important to image hidden objects in highly scattering media by detecting the early arriving (snake) photons of the transmitted light pulse, which traverse through the medium in small zigzag paths near the forward direction. The late arriving (diffuse) photons, which undergo random walks and are scattered in all. directions, are eliminated by time gating. The earlier the photons arrive, the better will be the spatial resolution of the image, but the intensity is correspondingly lower. In this presentation, the intensity attenuation of the transmitted snake photons through uncompressed and compressed biological tissues at different arrival time intervals are measured and analyzed by the diffusion theory.

© 1993 Optical Society of America

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