LINEAR-CIRCULAR DICHROISM AND ONE-PHOTON ABSORPTION IN PIEZOELECTRIC SEMICONDUCTORS WITH COHERENT SATURATION EFFECTS

The dependence of the contribution of saturation effect in one-photon light absorption coefficient in semiconductors with a band structure, consisting of two close posed sub-bands surveyed, one of which has "camel's back" structure, from a radiation intensity. Thus "nonlinearity" - saturation of one-photon absorption of polarized light is taken into discounted. It is shown that this nonlinearity is stipulated in main change in a field of electromagnetic wave of the "resonant" electronic transition in light absorption coefficient.