Title :
Four-level, phase only, spatial light modulator
Author :
Broomfield, S.E. ; Neil, M.A.A. ; Paige, E.G.S.
Author_Institution :
Dept. of Eng. Sci., Oxford Univ., UK
Abstract :
A novel scheme is presented for obtaining binary levels of arbitrary phase shift based on a commercially available ferroelectric liquid crystal spatial light modulator (FLCSLM) and appropriate polarisation optics. The performance is reported of a programmable two-stage cascaded device giving four states of equal magnitude with phases in quadrature.
Keywords :
ferroelectric devices; ferroelectric liquid crystals; light polarisation; liquid crystal devices; spatial light modulators; ferroelectric liquid crystal spatial light modulator; four level; polarisation optics; programmable two-stage cascaded device;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931106
