Image enhancement in a reflection optical microscope by suppression of diffusing photons using polarizing annular objectives

In this report, we describe the implementation of an angle-gating mechanism into a reflection optical microscope for imaging through a turbid medium. A significant improvement in image resolution and contrast is obtained when a polarizing annular objective is used to image a reflective test Lar thro ugh various turbid media. The experimental results confirm that the improve ment is caused by the efficient suppression of diffused photons scattered f rom the turbid medium when a polarized annular objective is employed as an angular gate.