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Keywords:

  • cholesteric liquid crystals;
  • polymerized liquid crystals;
  • electro-optic effects;
  • fast response
Thumbnail image of graphical abstract

The macroscopic alignment of nanosized liquid crystal domains in a polymer matrix with helical order is demonstrated by H. Yoshida and co-workers on page 256. The alignment can be switched to induce a change in the effective refractive index. Nanosizing of liquid crystal domains enables access to fast reorientation dynamics (˜10 μs), while helical order is retained in the polymer matrix, resulting in deformationfree tuning of the Bragg reflection band.