论文标题
purcell因子和福斯特共振能量转移与螺旋结构接近
Purcell factors and Forster resonance energy transfer in proximity to helical structures
论文作者
论文摘要
当放置在金属或晶体结构附近时，自发发射和共振能量转移都可以显着增强。可以使用电磁绿色张量来描述这种增强，并由结构的主要表面模式确定。在这里，我们使用特征性形式主义来得出具有各向异性包含的两个稳态培养基中的绝对态度的自发发射率和特征性形式主义。然后，我们将结果应用于支持同步振动的螺旋结构，并评估这些模式的贡献，这些模式与强和离域的响应有关。我们表明，这种贡献可能会导致大型purcell因子和远程货物，从而用螺旋螺距振荡。这些发现可能对了解和控制接近螺旋结构（例如微管）的分子的相互作用有影响。
Both spontaneous emission and resonant energy transfer can be enhanced significantly when the emitter is placed in the vicinity of metallic or crystal structures. This enhancement can be described using the electromagnetic Green tensor and is determined by the dominant surface modes of the structure. Here we use the eigenpermittivity formalism to derive the spontaneous emission and FRET rates in the quasistatic regime in a two-constituent medium with an anisotropic inclusion. We then apply our results to a helical structure supporting synchronous vibrations and evaluate the contribution of these modes, which are associated with a strong and delocalized response. We show that this contribution can result in large Purcell factors and long-range FRET, which oscillates with the helix pitch. These findings may have implications in understanding and controlling the interactions of molecules close to helical structures such as the microtubules.
