【摘要】 本文利用坐标变换和密度矩阵等方法，导出了电子有效质量随位置变化的量子阱中光学整流系数的解析表达式． 数值结果表明，较大的光学整流系数与系统的非对称性和光子能量有关．更多还原

【Abstract】 Optical rectification is calculated for a semiconductor quantum well in which the effective mass vary with position It is obtained an analytic formula for optical rectification by a coordinate transform and the density matrix approach The origin of the large optical rectification is due to the pump photon energy and the asymmetry of quantum well更多还原