Total-reflection liquid-crystal electrooptic device.
This paper describes a simple electrooptic effect that can be achieved by placing. a thin nematic liquid crystal layer between two glass prisms of appropriate refractive index. For a range of angles of incidence on the prism-liquid crystal interface, light is partially transmitted or totally reflected, depending upon the electric-field-controlled orientation of the optic axis in the nematic layer.
Kashnow
R A
RA
Stein
C R
CR