Optical scanning holography system

A geometric phase scanning holography system comprising:

• a first beam splitter configured to form an interference beam by overlapping a plane wave of left-handed circular polarized light and a spherical wave of right-handed circular polarized light;
• a scanning unit configured to scan an object by using the interference beam;
• a second beam splitter configured to receive a beam reflected from the object and configured to split the received beam into a first output beam and a second output beam;
• a first polarizer and a second polarizer configured to polarize the first output beam and the second output beam respectively;
• and
• a first photodetector and a second photodetector configured to detect the first output beam and the second output beam passing through the first polarizer and the second polarizer respectively.

A geometric phase in-line scanning holography system comprising:

• a polarization-sensitive lens configured to receive a linearly polarized beam and generate a first spherical wave of right-handed circular polarized light having a negative focal length and a second spherical wave of left-handed circular polarized light having a positive focal length;
• a scanning unit configured to scan an object by using an interference beam generated between the generated first spherical wave and the generated second spherical wave;
• a first beam splitter configured to receive a beam reflected from the object and split the reflected beam into a first output beam and a second output beam;
• a first polarizer and a second polarizer configured to polarize the first output beam and the second output beam, respectively;
• and
• a first photodetector and a second photodetector configured to detect the output beams passing through the first polarizer and the second polarizer, respectively.