Imaging through turbid medium utilizing spatial light modulator

Abstract EN

The spatial light modulator (SLM) is utilized to compensate wave front aberrations due to a highly scattering medium.

A He–Ne laser is transmitted through a turbid medium and produced a random speckle pattern, the intensity of one of the speckles can be easily enhanced by applying the appropriate SLM phase pattern.

A bright spot with a contrast proportional to the number of controlled SLM segments appears on the screen.

The images captured with the CCD camera before and after the optimization.-