Advanced Materials

Cover image for Vol. 28 Issue 6

21_46/20093D Bi-chiral Photonic Crystals: Three-Dimensional Bi-Chiral Photonic Crystals (Adv. Mater. 46/2009)

Bi-chiral photonic crystals are tailored man-made solids inspired by blue-phase cholesteric liquid crystals. They possess two types of chirality, leading to four different types of bi-chiral structures. In naturally occurring blue-phase liquid crystals, only two of these are thermodynamically stable. On p. 4680, Michael Thiel and co-workers fabricate all four via direct laser writing.

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