Effects of magnetic field on the excitonic properties, optical absorption and the changes of refractive index are studied numerically in a CdS/CdSe/CdS asymmetric quantum well with the solution of one dimensional Schrödinger wave equation using Aldrich-Bajaj effective potential. The magnetic field dependence on the binding energy, optical transition energy and the oscillator strength of a bound polaron is investigated taking into account the geometrical confinement effect. The envelop wave function is employed for obtaining the eigen energies using variational technique within the effective mass approximation. The density matrix method associated with the numerical calculations of the trail wave function is engaged to obtain the optical properties with the two level system. The numerical results show that the excitonic and optical properties can be altered with the change in well widths, barrier width and the application of magnetic field strength. It also exhibits that the peaks of absorption coefficients and changes of refractive index increase with the magnetic field strength and move towards the higher photon energies.

在Aldrich-Bajaj有效势的一维Schrödinger波动方程的求解下，在CdS / CdSe / CdS非对称量子阱中，数值研究了磁场对激子性质，光吸收和折射率变化的影响。考虑到几何约束效应，研究了磁场对结合能，光学跃迁能和结合极化子的振荡器强度的依赖性。包络波函数用于在有效质量近似范围内使用变分技术获得本征能量。结合与尾波函数的数值计算相关联的密度矩阵方法，以两级系统获得光学特性。数值结果表明，随着阱宽度，势垒宽度和磁场强度的变化，激子和光学性质可以改变。它还显示出吸收系数的峰值和折射率的变化随磁场强度的增加而增加，并朝着更高的光子能量移动。