Understanding and harnessing energy transfer in organic and inorganic systems is of high fundamental and practical importance. In this work, we have experimentally studied the effect of lamellar hyperbolic metamaterials and metal/dielectric interfaces on the concentration-dependent luminescence quenching in thin polymeric poly (methyl methacrylate) films doped with 2-[7-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethyl-3H-indoliumiodide dye molecules. The rate of the concentration quenching (energy transfer to quenching centers) was found to be approximately proportional to the square of the dye concentration. The concentration quenching was strongly inhibited in the vicinity of metallic films and lamellar metal–dielectric metamaterials with hyperbolic dispersion. The characteristic length-scale of the inhibition (the distance between the dye molecules and the metallic surface, at which the inhibition becomes significant) was found to be $\sim{47}\,\,{\rm nm}$. It was much longer than the Förster radius (the characteristic distance of the donor–acceptor energy transfer, 5 nm to 7 nm), and smaller than the penetration of the surface plasmon polariton field to the dielectric ($ \ge {250}\,\,{\rm nm}$). The explanation of the observed phenomenon is likely to be sought in terms of a model taking into account spectral overlap of the emission of donors and absorption of acceptors and/or collective behavior of emitters coupled with surface plasmons.

中文翻译：

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非局部金属介电环境对HITC染料浓度猝灭的影响

理解和利用有机和无机系统中的能量传递具有很高的基础和实际意义。在这项工作中，我们已经实验研究了层状双曲线超材料和金属/介电界面对掺杂有2- [7-（1,3-dihydro-1）的聚合物聚（甲基丙烯酸甲酯）薄膜的浓度依赖性发光猝灭的影响。 ，3,3-三甲基-2H-吲哚-2-亚烷基）-1,3,5-庚三烯基] -1,3,3-三甲基-3H-吲哚并呋喃染料分子。发现浓度猝灭的速率（能量转移到猝灭中心）大约与染料浓度的平方成正比。浓度淬灭在具有双曲分散的金属膜和层状金属-介电超材料的附近受到强烈抑制。$ \ sim {47} \，\，{\ rm nm} $。它比Förster半径长得多（供体-受体能量转移的特征距离，从5 nm到7 nm），并且比表面等离激元极化子场对电介质的穿透小（$ \ ge {250} \， \，{\ rm nm} $）。对观察到的现象的解释可能是根据模型进行的，该模型考虑了供体发射和受体吸收的光谱重叠和/或与表面等离子体激元耦合的发射器的集体行为。