Coherent Optical Holographic Imaging

A method comprising:

• outputting a source beam from an optical source;
• splitting the source beam into a reference beam and an object beam, the object beam being incident on a target to form a scattered object beam;
• receiving the scattered object beam and filtering diffuse light from the scattered object beam via a telecentric lens and a spatial filter to form a filtered scattered object beam;
• combining the filtered scattered object beam with the reference beam to form an interference beam;
• and
• receiving the interference beam at an imaging array.

An apparatus comprising:

• a pre-filter comprising a telecentric lens and a spatial filter, the pre-filter being configured to receive a scattered object beam from an interaction with a target and filter diffuse light from the scattered object beam to form a filtered scattered object beam;
• a combiner configured to combine the filtered scattered object beam with the reference beam to form an interference beam;
• and
• an imaging array configured to receive the interference beam and generate raw holographic data based on the interference beam.