Y. Razvin et al., SPATIAL MODULATION OF MATRIX NEMATIC LCDS A FIBEROPTIC COMPONENTS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 265, 1995, pp. 631-636
The effectiveness of matrix-type spatial-temporal LC modulators used i
n information-array formation circuits depends not only on the electro
optic parameters of the modulating layer but also on the modulator des
ign. New possibilities for using multichannel modulation of radiation
in optical circuits intended for formation and retrieval of informatio
n arrays are opened up by the development of matrix liquid crystal dis
plays (LCD) based on fiber-optic components. The work is concerned wit
h the results of development and investigation of liquid-crystal matri
x modulators on fibre-optic faceplates. The light transmission of the
substrates employed was 0.75-0.80 in the visible spectral range, and t
he resolution was not worse than 60mm(-1). The modulator samples utili
zed the twist-effect and the effect of dynamic light scattering in nem
atic liquid crystals, the LC layer width was 10 mu m. The modulation c
haracteristics were investigated on samples featuring different sizes
and shapes of electrodes. It is demonstrated that the contrast provide
d by the spatial-temporal modulators on fibre-optic faceplate is enhan
ced owing to a reduced noise level in the output faceplate plane.