Abstract

Optically bistable devices based on nonlinear thin-film interference filters have been reported by Smith et al [1] and Weinberger et al [2] and have been shown to be suitable for use as logic elements in digital optical circuits [3] and pattern recognition applications [4]. These devices use ZnSe or ZnS as the active material and rely on thermally induced changes in the refractive index to provide the required nonlinear response.

© 1987 Optical Society of America