Effect of soft saturation on nonlinear interface switching

Numerical simulation of a nonlinear interface has shown that remarkable improvement in switching quality is theoretically possible by hard-limited saturation of the nonlinearity. We report the results of simulations investigating the effect of different types of soft saturation on nonlinear-interface switching behavior. The calculated predictions are consistent with recent experimental findings and show surprisingly little difference between hard and soft saturation. Significant softening leads to contrast reduction.