Determination of Valence Band Parameters in ZnTe

Abstract

Abstract The fine structure of the 2P exciton in ZnTe is studied by two‐photon‐absorption. The energy splitting into four states, caused by the envelope–hole coupling, allows the determination of the Luttinger parameters γ 2 and γ 3 , which describe the complex valence band. γ 2 , 0.8 and γ 3 = 1.7 are obtained. These values will be compared to results of other experiments mainly on 1S excitons.