Theoretical study of temperature tuning and anisotropy of liquid crystal infiltrated synthetic opal as photonic crystal

We have theoretically studied the occurrence of photonic band gap. Calculated values of relative width and lattice size for nematic liquid crystal ZLI-1132 and smectic ferroelectric liquid crystal (R)-4'-(1-methoxycarbonyl-ethoxy)-phenyl-4-[4-(n-octyloxy)phenyl]benzoate (1MC1EPOPB) synthetic opal (SiO2) infiltrated with liquid crystal as a function of temperature using a model of strong localization for the occurrence of pseudogap are reported for the W-point in the Brillouin zone. A new expression for refractive index calculation for synthetic opal infiltrated with liquid crystal is proposed. Central wavelength is also calculated and compared with the observed ones. The structure parameter and opal size are also given. This work is important for temperature tuning and anisotropy of photonic crystal.