An. Chaika et Fl. Vladimirov, Nonlinear hologram recording on an optically controlled transparency of the glassy chalcogenide semiconductor-liquid crystal type, TECH PHYS L, 26(2), 2000, pp. 139-140
Realization of an optically controlled transparency possessing a nonlinear
holographic modulation characteristic containing region with positive and n
egative slope is demonstrated to be feasible. The transparency filter is ba
sed on a glassy chalcogenide photoconductor-nematic liquid crystal structur
e. A tenfold drop in the diffraction efficiency over the negative-slope reg
ion was obtained in the experiment. (C) 2000 MAIK "Nauka/Interperiodica".