Hot-hole electrooptic effect
Vorob'ev L E., Donetski D. V., Firsov D. A.
Two new electrooptic effects have been observed in semiconductors: a change in the refractive index and an anisotropy of this index upon the heating and drift of holes in a strong electric field. These effects are shown to result from a heating and drift of holes in the electric field and from the complex structure of the valence band. Experiments were carried out on ρ-type germanium. The experimental results agree well with theoretical predictions.