Tunable full bandgap in a three-dimensional photonic crystal modulated by a nematic liquid crystal

Ferroelectric Based Photonic Crystal Cavity by Liquid Crystal Infiltration

“…Liu investigated the tunable light wave propagation in two-dimensional hole-type photonic crystals infiltrated with nematic liquid crystal and the tunable absolute band gap in two-dimensional anisotropic photonic crystal structures modulated by a nematic liquid crystal [30,31]. Liu and Chen proposed the tunable field-sensitive polarizer using hybrid conventional waveguides and PC structures with nematic liquid crystals, the tunable PC waveguide coupler with nematic liquid crystals, the tunable PC waveguide Mach-Zehnder interferometer based on nematic liquid crystals, the tunable full band gap in a three-dimensional PC structure modulated by a nematic liquid crystal, the tunable channel drop filter in a two-dimensional photonic crystal modulated by a nematic liquid crystal and the tunable band gap in a photonic crystal modulated by a nematic liquid crystal [32][33][34][35][36][37]. Liu et al created the tunable bandgap in three-dimensional anisotropic photonic crystal structures modulated by a nematic liquid crystal and an efficient tunable negative refraction photonic crystal achieved by an elliptic rod lattice with a nematic liquid crystal [38][39].…”