13 January 1998 Time-gated holographic imaging using photorefractive media
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We demonstrate a coherence gating system to image through turbid media by using photorefractive holography with ultrashort pulses. Sub-100 micrometers depth-resolved images of 3D objects embedded in a scattering medium have been obtained. Using a long integration time in Rhodium-doped Barium Titanate, an image of a test chart has been obtained through 16 mean free paths of scattering medium. Real-time depth- resolved imaging through 13 mean free paths of scattering medium has been demonstrated using a fast response time photorefractive multiple quantum well device. We will discuss the trade-offs and limitations of these photorefractive media for this application.
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Mary Tziraki, Mary Tziraki, Richard Jones, Richard Jones, Nicholas P. Barry, Nicholas P. Barry, Sam C. W. Hyde, Sam C. W. Hyde, Paul M. W. French, Paul M. W. French, K. M. Kwolek, K. M. Kwolek, David D. Nolte, David D. Nolte, Michael R. Melloch, Michael R. Melloch, } "Time-gated holographic imaging using photorefractive media", Proc. SPIE 3196, Optical and Imaging Techniques for Biomonitoring III, (13 January 1998); doi: 10.1117/12.297940; https://doi.org/10.1117/12.297940

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