Imaging through scattering media with grating-based interferometers

In this report, the problem of imaging through scattering media is described and the basic approaches to the problem are reviewed. The concept of grating-based interferometers is introduced and some possible configurations are presented. The applications of the grating interferometers in imaging through scattering media are analyzed. The interferometers are basically utilized as coherence discriminators, separating out the scattered components of the received light fields by their coherence properties. The imaging of targets under both monochromatic and wideband illuminations are considered. Experimental results are provided to demonstrate the effectiveness of the concept.