Large three-dimensional photonic crystals based on monocrystalline liquid crystal blue phases.

ABSTRACT: Although there have been intense efforts to fabricate large three-dimensional photonic crystals in order to realize their full potential, the technologies developed so far are still beset with various material processing and cost issues. Conventional top-down fabrications are costly and time-consuming, whereas natural self-assembly and bottom-up fabrications often result in high defect density and limited dimensions. Here we report the fabrication of extraordinarily large monocrystalline photonic crystals by controlling the self-assembly processes which occur in unique phases of liquid crystals that exhibit three-dimensional photonic-crystalline properties called liquid-crystal blue phases. In particular, we have developed a gradient-temperature technique that enables three-dimensional pho

SUBMITTER: Chen CW 

PROVIDER: S-EPMC5620071 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature