ABSTRACTTime-resolved depolarization measurements are used to investigate rotational
diffusion and optical energy transfer dynamics of chromophores incorporated
into silica and aluminosilica solutions, gels, and glasses. The use of an
organically doped sol-gel clad waveguide as a novel intrinsic fiber optic
sensor device is also demonstrated, and advantages of time-resolved
detection of the fiber optic sensor are illustrated.