Spatio-temporal transformations of laser beam in thin light-sensitive AgCl-Ag film

We show that a variety of the effects connected with the spontaneous periodical structures induced in waveguide films depends on the wavelength, the angle of the incidence, and the laser beam polarisation; and also on the thickness, optical constants of the light-sensitive film, and the surrounding media. These effects may be used to design the functional elements for the control of light by light, and must be taken into consideration in the optical information recording.