SENARMONTS COMPENSATOR FOR ENTIRE VISIBLE-LIGHT REGION

An application study of the composite quarter-wave plate was carried o ut for the Senarmont's compensator method. The composite quarter-wave plate transforms linearly polarized light to a polarized state in a ma nner similar to that of the quarter-wave plate, thus it could also be used for Senarmont's compensator. Using this method, retardation of a phase plate can be measured for the entire visible light region.