Optical control of orientational bistability in photorefractive liquid crystals

Formation of Dynamic Hologram in Photorefractive Ferroelectric Liquid Crystals

“…[7][8][9][10][11][12][13] FLCs exhibit a chiral smectic C phase (SmC*) that possesses a helical structure. [14] When the FLC is sandwiched between glass plates to form a film of few micrometers thick, the helical structure uncoils and a surface-stabilized state (SS-state) is formed in which spontaneous polarization (Ps) appears.…”

Organic Photorefractive Materials and Applications

“…For a comprehensive overview on this topic, the reader is referred to recent book chapters, [ 16 ] review articles, [ 4 , 9 ] and highlight articles [ 50 ] on the matter. Recent publications on applications based on LC containing materials can be found in Refs.…”

Photorefractive Effect in Ferroelectric Liquid Crystals

“…Thus, a refractive index grating (or hologram) is formed. One material class that exhibits high photorefractivity is that of glassy photoconductive polymers doped with high concentrations of D-π-A chromophores, in which donor and acceptor groups are attached to a π- Ferroelectric liquid crystals are expected to be used as high performance photorefractive materials [11][12][13]. A photorefractive ferroelectric liquid crystal with a fast response of 5 ms has been reported [14].…”