Hybrid plasmonic waveguide coupling of photons from a single molecule
Hybrid plasmonic waveguide coupling of photons from a single molecule
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DOI：
10.1063/1.5110275
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发表时间：
2019-08-01
期刊：
影响因子：
5.6
通讯作者：
Clark, A. S.
中科院分区：
文献类型：
--
作者：
Grandi, S.;Nielsen, M. P.;Clark, A. S.
我们演示了光子从单个分子发射到混合间隙等离子体波导中。掺有二苯并涤纶（DBT）的蒽晶体生长在波导的顶部。我们研究了单个DBT分子耦合到其中一个波导的等离子体区域，并确定了其面内取向、激发态寿命和饱和强度。分子将光发射到导光板中，导光板通过光栅进行远耦合。二阶自相关函数和互相关函数表明，发射体是一个单分子，并且从光栅发出的光来自该分子。耦合效率为β (WG) = 11.6(1.5)%。这种类型的结构有望在量子光子电路中建立新的功能，在量子光子电路中，强发射波导耦合的局部区域可以通过低损耗介质波导相互连接。(C) 2019作者。
We demonstrate the emission of photons from a single molecule into a hybrid gap plasmon waveguide. Crystals of anthracene, doped with dibenzoterrylene (DBT), are grown on top of the waveguides. We investigate a single DBT molecule coupled to the plasmonic region of one of the guides and determine its in-plane orientation, excited state lifetime, and saturation intensity. The molecule emits light into the guide, which is remotely out-coupled by a grating. The second-order autocorrelation and cross-correlation functions show that the emitter is a single molecule and that the light emerging from the grating comes from that molecule. The coupling efficiency is found to be beta(WG) = 11.6(1.5)%. This type of structure is promising for building new functionality into quantum-photonic circuits, where localized regions of strong emitter-guide coupling can be interconnected by low-loss dielectric guides. (C) 2019 Author(s).