Abstract
The electrodynamics of a nonlinear optical film sandwiched between two dielectrics are analyzed for two possible switching modes. One corresponds to the case where the incident laser is initially internally reflected [total internal reflection (TIR)] and the film has a positive nonlinearity.1 The second is for the case where the laser is initially transmitted, but the optical film has a negative nonlinearity. Figure 1 depicts schematically the configuration. Clearly, in case one, switching from TIR to the transmission state and, in case two, switching to a TIR state can occur owing to the positive/negative nonlinearity of the thin film.
© 1989 Optical Society of America
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