Electric-field response behavior and structural analysis in the blue phase including asymmetric dimer with mesogenic- and nonmesogenic-groups

Seishi Shibayama, Hiroki Higuchi, Hirotsugu Kikuchi
2008 Preprints of symposium on liquid crystals  
Blue phases (BPs) are known to exhibit optical stop bands in a visible range because they have a three-dimensional cubic structure with lattice periods of several 100 nm. Furthermore, since the diffracted wavelength of BPs can be shifted by external electric fields. BPs are expected to be applied for tunable photonic crystals. We have succeeded in expanding a temperature range of BPs from generally ca. 1 o C to 11 o C on heating when an asymmetric dimer with mesogenic-and nonmesogenic-groups was added to BP.
doi:10.11538/ekitou.2008.0.238.0 fatcat:aveza3frqvfqzm6qxynnoegvma