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介绍了量子点阵列的有限元分析方法,分析了二维透镜形2×2自组织相干量子点阵列的应变场分布,给出了不同方向上和不同位置处量子点阵列的应变运算结果.通过对结果的讨论得出结论:当量子点间的横向距离与其线度可比拟时,量子点阵列中各量子点内的应变不受周围其他量子点的影响.
The finite element method of quantum dot array is introduced and the strain field distribution of 2 × 2 self-coherent quantum dot array in 2-D lens is analyzed. The results of strain calculation of quantum dot array in different directions and at different positions are given. The discussion of the results concludes that when the lateral distance between quantum dots is comparable to its linearity, the strain within each quantum dot in the quantum dot array is unaffected by the other quantum dots around it.