birefringent plate

birefringent plate

[‚bī·ri′frin·jənt ′plāt]
(optics)
A piece of birefringent optical material with parallel plane surfaces.
References in periodicals archive ?
That element was a uniformly birefringent plate, called a compensator, which had to be placed between the crossed polarizers, either before or after the specimen.
[4], a polarizing system with the properties of a quarter-wave plate, with an additional optical activity based on two birefringent plates of arbitrary thickness, is considered theoretically and implemented experimentally.