Abstract
A method using polarization modulation was employed to extract photons traveling along a nearly straight line in a scattering medium. Removal of a floor level normally appearing on the dynamic range over which the extraction capability is mainted is demonstrated. The method was applied to take the projection data of absorbers in a highly scattering medium and the optical computed tomography (CT) image was reconstructed from the projection data. It exhibited higher spatial resolution than the image reconstructed from the projection data by conventional method. The optical CT apparatus was fabricated and applied to a pimiento and a summer orange. Although the spatial resolution of images was not sufficient, the internal section and core could be recognized.
