NONLINEAR OPTICAL PULSE-PROPAGATION IN A SEMICONDUCTOR MEDIUM IN THE TRANSIENT REGIME .2. INTERFEROMETRIC SAMPLING

We use a numerical model of pulse propagation in a semiconductor to simulate the technique of interferometric sampling of the semiconductor response to an optical pulse. Interferometric sampling is a form of time-resolved interferometry which combines elements of classical interferometry and pump-probe techniques to obtain the transient response of nonlinear refractive index and absorption changes in a material. The technique is shown to measure accurately saturated changes in phase and transmittance, as well as the interband recombination time. © 1990 IEEE