EXPERIMENTAL CORRECTIONS FOR THE HOT HOLE DISTRIBUTION FUNCTION IN GERMANIUM IN CROSSED ELECTRIC AND MAGNETIC-FIELDS

A procedure for finding corrections for the hot hole distribution func tions obtained from absorption measurements on intersubband transition s of hot heavy and light holes in germanium in crossed electric and ma gnetic fields is proposed. This procedure is based on the multiple-val ued dependence of the absorption on the photon energies of transitions from light holes to a subband split off as a result of the spin-orbit interaction. Taking these corrections into account improves the agree ment between the gain for direct optical transitions between the light and heavy hole subbands calculated from measurements of the absorptio n in the near-infrared and direct measurements in the far-infrared. (C ) 1998 American Institute of Physics. [S1063-7826(98)01110-7].