Abstract
Here we present, a theory which describes the propagation of self-focused channel (spatial solitons) in the media consisting from the twoself - focusing nonlinear media and the periodically-modulated thin linear film separating this media. Recently it was shown that propagation of spatial olitons at an oblique angle of incidence to an interface between nonlinear Kerr-like media may be represented as an equivalent particle moving in the effective potential[1].This theory predicts the nonlinear Snell’s law of reflection and existence of nonlinear surface waves. It is possible to use the design of an all-optical power spatial scanner and an all-optical switch [2]. Existence of periodically - modulated thin film also leads to the new possibilities for such designs.
© 1991 Optical Society of America
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