Optical activity measurements in the smectic blue phases
- Cite this article as:
- Grelet, E., J. Collings, P., Li, MH. et al. Eur. Phys. J. E (2001) 6: 157. doi:10.1007/s101890170017
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Optical activity measurements have been performed on the smectic blue phases ( BPSm), which are a new kind of chiral liquid crystal. BPSm exhibit both three-dimensional orientational order, like the classical blue phases, and smectic positional order. Thus, they can be viewed as the three-dimensional counterpart of the twist grain boundary phases. A comparison with the optical activity of the classical blue phases is carried out, and an estimation of the BPSm lattice parameter is reported for the first time.