Dynamic control of plasmon generation by an individual quantum system.
Dynamic control of plasmon generation by an individual quantum system.
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DOI：
10.1021/nl502413k
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发表时间：
2014-09
期刊：
影响因子：
10.8
通讯作者：
C. Große;A. Kabakchiev;Theresa Lutz;Romain Froidevaux;F. Schramm;M. Ruben;M. Etzkorn;U. Schlickum-U.-Schlicku
中科院分区：
文献类型：
--
作者：
C. Große;A. Kabakchiev;Theresa Lutz;Romain Froidevaux;F. Schramm;M. Ruben;M. Etzkorn;U. Schlickum-U.-Schlicku
以与电流类似的方式控制纳米级的光有可能彻底改变信息的交换和处理。尽管可以通过将光与等离子体激元（即金属中的集体电子振荡）耦合来在这种规模上引导光，但它们的局部电子控制仍然是一个挑战。在这里，我们证明了单个量子系统能够动态地门控电等离子体激元的产生。在两个电极之间的双隧道势垒中使用单分子，我们表明这种门控可用于监测量子系统本身的快速变化，并实现可在千兆赫范围内运行的单分子等离子体激元生成场效应晶体管。这为连接纳米电子学和纳米光子学的原子级量子界面开辟了新途径。
Controlling light on the nanoscale in a similar way as electric currents has the potential to revolutionize the exchange and processing of information. Although light can be guided on this scale by coupling it to plasmons, that is, collective electron oscillations in metals, their local electronic control remains a challenge. Here, we demonstrate that an individual quantum system is able to dynamically gate the electrical plasmon generation. Using a single molecule in a double tunnel barrier between two electrodes we show that this gating can be exploited to monitor fast changes of the quantum system itself and to realize a single-molecule plasmon-generating field-effect transistor operable in the gigahertz range. This opens new avenues toward atomic scale quantum interfaces bridging nanoelectronics and nanophotonics.