Liquid Crystalline Blue Phases - Liquid Crystalline Functional Assemblies and Their Supramolecular Structures - page 107

Fig. 6 Reflectance spectrum of Blue Phase I and polarizing optical micrograph of typical
platelet texture
the spectrum. With typical blue phases, the blue range is formed by light
diffracted from the (110) and (200) directions of BP I and the (100) direc-
tion of BP II. This range appears blue to the naked eye, giving rise to the
name “blue phase.” The disclination caused by frustration in the molecular
arrangement passes through a corner at which three double-twisted cylin-
Fig. 7 Example of a transmission electron microscopy image of a section of a quenched
blue phase [14]