Theoretical Studies of Experiments and Applications of Subpicosecond Photoconductivity.

The reporting period covers the second year of a two year program whose goal is the development and used of models of femtosecond photoconductive experiments as probes of hot corried transport in semiconductors. The program has been extended for two more years. These experiments are being carried out in a companion effort directed by Dr. Gerald Mourou at the University of Rochester, Rochester New York. There are several main components to the modeling of such experiments. One must first model the general main components to the modeling of such experiments. One must first model the generation of electron-hole pairs inside a semiconductor as the results of the incidence of a femtosecond optical pulse. Then one must model the processes by which the resulting current transient is developed. Lastly, the conversion of the current transient into a voltage wave that is directly measured in the experiments of interest.