Perturbation Theory and Two-Photon Magnetoabsorption in Semiconductors

Abstract

The previous perturbation-theoretical calculations of two-photon magnetointerband transitions in InSb-type semiconductors are found to have understimated the strengths of the $\ensuremath{\Delta}n=+1,\ensuremath{-}3$ transitions by having omitted effective-mass terms. The corrected perturbation theory satisfactorily accounts for new measurements of the two-photon absorption carried out with circularly and linearly polarized radiation.