Fluctuation spectroscopy of hot electrons in semiconductors. Chapter 8

Fluctuation and diffusion processes in non-equilibrium states have been intensively investigated during the last two decades. Owing to the various developments in theory, instrumentation, computers and other advanced techniques, a profound understanding of various fluctuation phenomena in non-equilibrium systems has been achieved. It has become evident that phenomena such as the nose of hot carriers in semiconductors, light scattering from non-equilibrium carriers, or from a gas or fluid with gradients, non-equilibrium diffusion in these systems, as well as a number of other non-equilibrium phenomena have major similarities from a fundamental kinetic point of view. This chapter overviews contemporary theoretical and experimental research in the field which can be outlined as the investigation of the spectra of noise and fluctuations of hot carriers in semiconductors. The aim is to give a coherent summary of the state of the art of this exciting and productive area of modern semiconductor physics. (author). 96 refs., 32 figs