用量子力学中的密度矩阵算符理论推导出了正切平方量子阱中三次谐波产生的解析表达式,并以典型的GaAs正切平方量子阱为例进行数值......

　　By using the compact density matrix approach, the linear and nonlinear optical absorption coefficients in a GaN-base......

Within the framework of compact density matrix approach and iterative procedure, a detailed procedure for the calculatio......