Stabilization of thermodynamic relaxation of photoinduced cis isomers of azobenzene liquid-crystal molecules is observed in nanoparticulate networks. The phenomenon permits bistability of the phase state (anisotropic and isotropic) of the material and reversible all-optical switching between those states, resulting in strong changes in the light-scattering properties of the material. Recording of complex optical structures with high spatial resolution with the aid of laser beams of different wavelengths is demonstrated.
© 2002 Optical Society of America
N. Tabiryan, V. Grozhik, and S. Serak, "Photosensitive liquid crystals with nanoparticulate internal structure," Opt. Lett. 27, 1968-1970 (2002)