Using the combination of coordinate transformation and the finite difference method, we have studied theoretically, the optical absorption coefficient and the refractive index changes of the InAs/InP quantum wire, with a lens cross-section. For this purpose, we have used the analytical expressions for optical properties obtained by the compact-density matrix formalism. The evaluation has been performed in varying the dimension of the quantum wire and the incident optical intensity I. The obtained results show that the oscillator strength (transition life) increase (decrease) by increasing the height H. Also, the total absorption coefficient achieves a maximum value which corresponds to the energy difference of the two different electronic states and the resonant peaks shift toward the lower energies by increasing the height H.

结合坐标变换和有限差分法，我们从理论上研究了具有透镜截面的InAs/InP量子线的光吸收系数和折射率变化。为此，我们使用了由紧致密度矩阵形式化获得的光学特性的解析表达式。通过改变量子线的尺寸和入射光强度 I 进行了评估。获得的结果表明，随着高度 H 的增加，振荡器强度（跃迁寿命）增加（减少）。此外，总吸收系数达到最大值对应于两种不同电子态的能量差，谐振峰通过增加高度 H 向较低的能量移动。