Abstract

Imaging through a dynamic-scattering medium produces low-contrast images due to the added large background of scattered light. A passive phase-conjugate mirror can generate an image with enhanced contrast; the background noise changes faster than the recording-medium integration-time and therefore is not recorded. This system does not require a reference-wave coherent with the image, and it operates in real time. Experimental results through a simulated scattering medium demonstrate the contrast improvement over the conventional imaging arrangement.

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