Abstract: An optical device composition of the present invention includes a trifluorovinyl group containing polyimide that is crosslinkable and thermally stable after crosslinking. The invention relates to a polyimide composition which provides either passive or active wave-guide optical capabilities. More particularly since the composition comprises a chromophore which shows non-linear optical ability, the composition can be used for an active wave guide material, such as modulator or switching device compositions. Furthermore, the composition may include a trifluorovinyl containing chromophore and polyimide which comprises non-linear optical ability in the matrix polymer system.

Abstract: Crystalline colloidal arrays (CCA) which have been encapsulated in a polymer matrix to produce more robust polymerized crystalline colloidal arrays (PCCA) are provided. The PCCA's of the present invention can be in the form of a hydrogel which can be compatible for use with a biological system. The polymer matrix of the PCCA is formed of polymerized poly(ethylene glycol) based monomer units which can provide a desired functionality to the PCCA. The PCCA can be formed to exhibit a photonic bandgap at a certain wavelength. The photonic bandgap can be capable of shifting upon some form of environmental stimulation rendering the PCCA suitable for many optical applications, including active photonic switching and sensory applications.