The effect of spin-orbit splitting on the third-order nonlinear optical susceptibility in CdSe/ZnS quantum dot materials

摘要

The nonlinear optical susceptibility with inter-subband transitions between conduction band and valence band is theoretically calculated for CdSe/ZnS core-shell quantum dot (QD). Under the effective-mass approximation, the eigenenergy and wavefunction of electrons and holes have been calculated by solving stationary Schrodinger equation. The third-order nonlinear optical susceptibilities x~((3)) of quadratic electro-optic effects (QEOE) have been also calculated in the case that spin-orbit splitting is considered.