“…[110][111][112][113] Second-order NLO properties come from the non-centrosymmetric alignment of the NLO chromophores; guest-host doping, covalently bound side-chains, or self-assembly. 114,115 To achieve wide spread commercial use of electro-optic (EO) applications, NLO materials must have low dielectric constants, constant refractive index over wide wavelength (telecommunications) and temperature ranges, high dipole (l) and hyperpolarizable (b) chromophores, longterm thermal stability, low attenuation, and be processable for the preparation of photonic devices. [116][117][118][119] PFCB aryl ether polymers encompass excellent properties suitable for EO applications.…”