Long-Range Resonant Energy Transfer Using Optical Topological Transitions in Metamaterials
Long-Range Resonant Energy Transfer Using Optical Topological Transitions in Metamaterials
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DOI：
10.1021/acsphotonics.8b00484
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发表时间：
2018-07-01
期刊：
影响因子：
7
通讯作者：
Menon, Vinod M.
中科院分区：
文献类型：
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作者：
Deshmukh, Rahul;Biehs, Svend-Age;Menon, Vinod M.
控制和增强共振能量传递对于从太阳能电池到光谱尺子的各种应用都是非常必要的。然而，直接共振能量转移的过程与距离有关，对于典型的施主-受体对，直接共振能量转移的范围类似于10 nm。在这里，我们展示了通过利用超材料中的光学拓扑跃迁(OTT)在供体量子点和受体染料分子之间进行远程(类似于160 nm)的直接能量转移。在超材料中，OTT改变了施主和受主之间的态密度，导致了能量的远程转移，转移效率接近32%。用基于主方程形式的理论计算对该系统进行了建模，结果与实验观测结果吻合较好。在超材料中使用OTTS来增强和控制能量传递过程可以有广泛的潜在应用，从有机太阳能电池到量子纠缠。
The control and enhancement of resonance energy transfer is highly desirable for a variety of applications ranging from solar cells to spectroscopic rulers. However, the process of direct resonance energy transfer is distance dependent and limited to similar to 10 nm for typical donor-acceptor pairs. Here we demonstrate long-range (similar to 160 nm) direct energy transfer between donor quantum dots and acceptor dye molecules through the use of an optical topological transition (OTT) in a metamaterial. The OTT in a metamaterial, modifies the density of states between the donor and acceptor, resulting in the long-range energy transfer with transfer efficiency of similar to 32%. Theoretical calculation based on master-equation formalism is used to model the system and is found to be in good agreement with the experimental observation. The use of OTTs in metamaterials to enhance and control energy transfer process can have wide array of potential applications ranging from organic solar cells to quantum entanglement.