Title :
Low RI liquid crystals for integrated optics
Author :
Sage, I. ; Chaplin, D.
Author_Institution :
BDH Limited, Advanced Materials Division, Poole, UK
Abstract :
By combining fluorinated isotropic additives with a mixture of saturated hydrocarbon-based liquid crystalline compounds, nematic materials of very low refractive index can be obtained. Mixtures are available with an ordinary refractive index below that of fused silica at room temperature, allowing the construction of active overlayer devices on common waveguide substrates.
Keywords :
integrated optics; liquid crystal devices; liquid crystals; active overlayer devices; common waveguide substrates; fluorinated isotropic additives; integrated optics; low refractive index; nematic liquid crystals; nematic materials; saturated hydrocarbon-based liquid crystalline compounds;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870829
