Liquid crystals as active elements of sensorsbased on planar waveguide

摘要

A system LC - waveguide may be applied in different devices for physical values registration, and optical signal controlling devices. It is actual to use a planar waveguide in combination with peculiarity of liquid crystal materials that are characterised by a high sensitivity to physical values external influence liquid crystal materials. At present time waveguides are widely used as elements for signals processing and transmission in optical systems, that are realized on different optical effects. The using of planar waveguide as backplane of LC cell alleviate orientation process of liquid crystal layer in contrast to fibre waveguide.