光腔中电偶极耦合及其对能量传递、上转换和池化的影响
Electric Dipole Coupling in Optical Cavities and Its Implications for Energy Transfer, Upconversion and Pooling
摘要：
共振能量转移，能量转移上转换，和能量池被认为是在光学腔中阐明激子动力学和施主/受主分离距离之间的关系。这是完成使用微扰理论推导出的电偶极子耦合张量的完美的平面和矩形通道反射器-直接关系到一些重要的能量传递过程的解析表达式。在近场中，沿腔轴的分离依赖性不受腔的影响，并且基本上与三维自由空间相同。这与在理想化低维设置中发现的对分离的降低的灵敏度形成鲜明对比。腔动力学仅对应于它们在远场中的降维对应物，其中这种激子过程通常不感兴趣。然而，有一个中间状态，其中足够小的空腔导致分离灵敏度的大幅降低，导致偶极-偶极耦合张量的一个分量比自由空间的大得多。
英文摘要：
Resonant energy transfer, energy transfer upconversion, and energy pooling are considered within optical cavities to elucidate the relationship between exciton dynamics and donor/acceptor separation distance. This is accomplished using perturbation theory to derive analytic expressions for the electric dipole coupling tensors of perfect planar and rectangular channel reflectors---directly related to a number of important energy transfer processes. In the near field, the separation dependence along the cavity axis is not influenced by the cavity and is essentially the same as for three-dimensional, free space. This is in sharp contrast to the reduced sensitivity to separation found in idealized low-dimensional settings. The cavity dynamics only correspond to their reduced dimensional counterparts in the far field where such excitonic processes are not typically of interest. There is an intermediate regime, though, where sufficiently small cavities cause a substantial decrease in separation sensitivity that results in one component of the dipole-dipole coupling tensor being much larger than those of free space.
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