Femtosecond transillumination tomography in thick tissues
- 1 July 1993
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 18 (13) , 1107-1109
- https://doi.org/10.1364/ol.18.001107
Abstract
We describe diffuse-light time-gated imaging with transillumination optical coherence tomography. Submillimeter-resolution imaging of objects hidden in thick biological tissue is achieved in cases in which ballistic light is absent by selecting only the early-arriving coherent portion of the diffuse transmitted light. By using a femtosecond laser as a high-power low-coherence light source, we perform high-sensitivity (130-dB dynamic range) optical gating with interferometric heterodyne detection. The dependence of image resolution on coherent photon arrival time is investigated in model scattering media.Keywords
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