1. For example, a special issue on “Optical Computing”, IEEE Spectrum, August (1986) and a special issue on “Optical Computing”, of Optics News 12, April (1986).
2. H.M. Gibbs, “Controlling Light with Light—Optical Bistability”, Academic Press, New York, 1985.
3. S. Amari, “Mathematics of Neural Networks”, (in Japanese), Sangyo Tosho, Tokyo, 1978.
4. For example, M. Takeda and J.W. Goodman, Applied Optics 25, 3033 (1986), and references cited therein.
5. H. Nakanishi, H. Matsuda, S. Okada, and M. Kato, in “Proceedings of the Symposium on Nonlinear Optics of Organics and Semiconductors”, held in Tokyo, 1988.