Optical isotropy and iridescence in a smectic ‘blue phase’

  title={Optical isotropy and iridescence in a smectic ‘blue phase’},
  author={Jun Yamamoto and Isa Nishiyama and Miyoshi Inoue and Hiroshi Yokoyama},
When liquid crystal molecules are chiral, the twisted structure competes with spatially uniform liquid crystalline orders, resulting in a variety of modulated liquid crystal phases, such as the cholesteric blue phase, twist grain boundary and smectic blue phases. Here we report a liquid crystal smectic blue phase (SmBPiso), formed from a two-component mixture containing a chiral monomer and a ‘twin’ containing two repeat units of the first molecule connected by a linear hydrocarbon spacer. The… 
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An electrically induced anisotropic birefringent structure in the chiral isotropic phase and a photoinduced 3D-3D phase transition in the smectic Q phase are introduced as possible application on the basis of the frustrated chiral 3D structured liquid crystal phases.
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We report an induction of the blue phase III (BPIII) at a relatively low and wide (over 20 °C) temperature range in nematogenic achiral bent-core liquid crystals doped with a high twisting power
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The helical structure of the B4 phase in the banana-shaped molecules, the 1,3-benzene bis[4-(4-n-alkoxyphenyliminomethyl) benzoate] (P-n-O-PIMB) series, has been studied by means of optical
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tion of the nematic director field with respect to the inverse opal backbone by an external electric field can completely open or close the full, three-dimensional PBG. In this Letter, we illustrate
Hexagonal symmetry for smectic blue phases
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  • Physics
    Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
  • 2000
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Smectic phases with cubic symmetry: the splay analog of the blue phase.
It is found that for the right range of material parameters, the favorable saddle-splay energy of these structures can stabilize them against uniform layered structures.
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