Single Photon Emission from a Plasmonic Light Source Driven by a Local Field-Induced Coulomb Blockade.,ACS Nano

当前位置： X-MOL 学术 › ACS Nano › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Single Photon Emission from a Plasmonic Light Source Driven by a Local Field-Induced Coulomb Blockade.
ACS Nano ( IF 15.8 ) Pub Date : 2020-03-18 , DOI: 10.1021/acsnano.9b09299
Christopher C Leon ₁ , Olle Gunnarsson ₁ , Dimas G de Oteyza _{2,

3,

4} , Anna Rosławska ₁ , Pablo Merino _{1,

5,

6} , Abhishek Grewal ₁ , Klaus Kuhnke ₁ , Klaus Kern _{1,

7}

Affiliation

A hallmark of quantum control is the ability to manipulate quantum emission at the nanoscale. Through scanning tunneling microscopy-induced luminescence (STML), we are able to generate plasmonic light originating from inelastic tunneling processes that occur in the vacuum between a tip and a few-nanometer-thick molecular film of C60 deposited on Ag(111). Single photon emission, not of molecular excitonic origin, occurs with a 1/e recovery time of a tenth of a nanosecond or less, as shown through Hanbury Brown and Twiss photon intensity interferometry. Tight-binding calculations of the electronic structure for the combined tip and Ag-C60 system results in good agreement with experiment. The tunneling happens through electric-field-induced split-off states below the C60 LUMO band, which leads to a Coulomb blockade effect and single photon emission. The use of split-off states is shown to be a general technique that has special relevance for narrowband materials with a large bandgap.

中文翻译：

局域感应库仑封锁驱动的等离子光源发出的单光子发射。

量子控制的标志是能够控制纳米级的量子发射。通过扫描隧道显微镜诱导的发光（STML），我们能够生成等离子体，该等离子体源于真空中发生的非弹性隧穿过程，该过程发生在尖端与沉积在Ag（111）上的几纳米厚的C60分子膜之间。单光子发射（不是分子激子源）以十分之一分之一秒或更短的1 / e恢复时间发生，如汉伯里·布朗和特维斯光子强度干涉仪所示。尖端和Ag-C60组合系统的电子结构的紧密结合计算与实验结果吻合良好。隧道的发生是通过电场引起的C60 LUMO波段以下的分裂状态，从而导致库仑阻挡效应和单光子发射。

更新日期：2020-03-11

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11