The information systems with low cost and high processing speed are preferable in
energy saving technologies. Holographic and electro-magneto-optical light modulators are the
important components of such systems. In these components storage, accumulation and
processing of the optical information is accomplished in recording (photoactive) mediums [1].
The films of polymeric composites where optical anisotropy or conductivity can be induced by
illumination appear among these mediums. The mediums for following purposes are developed
for practical application and tested: (i) polarization holography and electro-magneto-optical light
modulators; (ii) photothermoplastic holographic recording. New azobenzene polymers and their
polycomplexes with metals were synthesized for the first case. Cooligomers of vinylcarbazole
doped with organic dyes were used in the case (ii). Stage of fundamental investigations of
photophysical properties preceded creation of the mediums. The model conceptions of formation
of photoinduced optical anisotropy, photogeneration and transport of nonequilibrium charge
carriers as well as formation and development of latent holographic image were elaborated.
Selective spectral sensitivity for light wavelength of used lasers is the significant advantage of
these mediums as compare to another known information mediums. This fact allows to use the
mediums practically without special protection against external illumination.
References:
1. http://www.youtube.com/watch?v=EZynG_qkGvM.