[Physics] Circularly polarized light passing through a polarizer

opticspolarization

Can anyone explain why the intensity of the incoming circularly polarized light is same as it passes through a polarizer and comes out???

Best Answer

The intensity is changed when circularly polarized light passes through a polarizer, though. The light is changed from circularly polarized to linearly polarized. If you draw the evolution of the waves with respect to an axis, any part of the circularly polarized wave that is not aligned with the linear polarizer will have its intensity reduced.