We have studied the energy transfer using Kerr nonlinearity for nanohybrids made of an ensemble of interacting quantum dots and metallic nanoshells. The energy transfer in quantum dots has been calculated by using the quantum density matrix method in the dipole-dipole coupling between quantum dots. We showed that the power transfer occurs from the metallic nanoshell to the quantum dot by four processes. In the first process, three probe photons are transferred to the quantum dot. In the second process, two probe photons and one polariton from the metallic nanoshell are transferred to the quantum dot. Similarly, in the third process, one probe photon and two polaritons from the metallic nanoshell are transferred to the quantum dot. Finally, three polaritons from the metallic nanoshell are transferred to the quantum dot. We found an enhancement in the energy transfer in the quantum dot due to the last three processes. We have also predicted that the power spectrum peak would split into two peaks due to the dipole-dipole coupling. The present findings can be used to fabricate nano-power devices for nanotechnology and nanomedical applications.

我们已经使用克尔非线性研究了由相互作用的量子点和金属纳米壳组成的纳米混合物的能量转移。在量子点之间的偶极-偶极耦合中使用量子密度矩阵方法计算了量子点中的能量转移。我们证明了能量从金属纳米壳到量子点的转移通过四个过程发生。在第一个过程中，三个探测光子被转移到量子点。在第二个过程中，来自金属纳米壳的两个探测光子和一个极化子被转移到量子点。同样，在第三个过程中，来自金属纳米壳的一个探测光子和两个极化子被转移到量子点。最后，来自金属纳米壳的三个极化子被转移到量子点。由于最后三个过程，我们发现量子点中的能量转移有所增强。我们还预测，由于偶极-偶极耦合，功率谱峰值将分裂为两个峰值。目前的发现可用于制造用于纳米技术和纳米医学应用的纳米功率器件。