Structure of blue phase of cholesteric liquid crystals
Kizel' V. A., Prokhorov V. V.
The circular dichroism of blue phases was measured under normal and oblique incidence of light. It is demonstrated that the low-temperature blue phase has a body-centered cubic structure, while the high-temperature phase has a simple cubic structure. The orientation of structures in the specimen is determined. The magnitudes of the Fourier coefficients of the dielectric-constant tensor of both structures are estimated.