The influence of terahertz laser field on nonlinear anisotropic optical properties, such as optical absorption and refractive index changes is studied. By solving the Schrödinger equation of the system in the framework of effective mass with the Kramers–Henneberger (KH) transformation, the eigenfunctions and energy eigenvalues of the system are obtained. The optical absorption and refractive index changes are deduced by the compact density matrix form and the scheme of iterative method. The results show that the polarization angle and intensity of terahertz laser field have a strongly influence on the peak of optical absorption and refractive index change in different directions respectively.

研究了太赫兹激光场对非线性各向异性光学性质（如光吸收和折射率变化）的影响。通过在有效质量框架内使用Kramers-Henneberger（KH）变换求解系统的Schrödinger方程，可以获得系统的本征函数和能量本征值。通过紧凑的密度矩阵形式和迭代方法的方案推导了光吸收和折射率的变化。结果表明，太赫兹激光场的偏振角和强度分别对不同方向的光吸收峰和折射率变化有强烈影响。