Parameters-dependent third-order nonlinear optical susceptibility for quadratic electro-optic effect in GaN/InGaN multiple quantum wells

摘要

Including the contribution of spin-orbit splitting, the wave functions and energy structures of GaN/InxGa1-xN multiple quantum wells (MQWs) have been calculated. For the transition between valence band and conduction band, the third-order nonlinear optical susceptibility chi((3)) of quadratic electro-optic effect (QEOE) for the mode whose polarization is vertical to the [0 0 1] direction of the MQWs, has been calculated. The correlations between chi((3)) and the width of the MQWs, and the concentration of In, are obtained. (c) 2007 Elsevier B.V. All rights reserved.