Optical sectioning apparatus using advanced optical interference microscopy

An optical sectioning apparatus using advanced optical interference microscopy, comprising:

• a first white light source unit for generating a first white light beam, the first white light beam having a frequency spectrum including a broad band and a narrow band;
• a light mixing unit having a first side, a second side, a third side, and a fourth side, the first side facing the first white light source unit, and capable of dividing the first white light beam incident on the first side into a first partial beam passing through the second side and a second partial beam passing through the third side;
• a reference end unit for making the second partial beam travel a round trip along an adjustable optical path and then return to the light mixing unit;
• a first objective lens having a collimated side and a focal side, the collimated side facing the second side of the light mixing unit;
• a carrier unit for carrying a live tissue or a sample dyed with a fluorescent agent, the carrier unit facing the focal side of the first objective lens;
• a projection lens having a light entering side and a light exiting side, the light entering side facing the fourth side of the light mixing unit;
• and
• a sensing unit facing the light exiting side of the projection lens.