Unusual and Tunable One-Photon Nonlinearity in Gold-Dye Plexcitonic Fano Systems
文献类型：期刊论文
| 作者 | Fan Nan; Ya-Fang Zhang; Xiaoguang Li; Xiao-Tian Zhang; Hang Li; Xinhui Zhang; Ruibin Jiang; Jianfang Wang; Wei Zhang; Li Zhou |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2015 |
| 英文摘要 | Recent studies of the coupling between the plasmonic excitations of metallic nanostructures with the excitonic excitations of molecular species have revealed a rich variety of emergent phenomena known as plexcitonics. Here, we use a combined experimental and theoretical approach to demonstrate new and intriguing aspects in the ultrafast nonlinear responses of strongly coupled hybrid Fano systems consisting of gold nanorods decorated with near-infrared dye molecules. We show that the severely suppressed linear absorption around the Fano dip significantly enhances the unidirectional energy transfer from the plasmons to the excitons and further allows one-photon nonlinearity to be drastically and reversibly tuned. These striking observations are interpreted within a microscopic model stressing on two competing processes: saturated plasmonic absorption and weakened destructive Fano interference from the bleached excitonic absorption. The unusually strong one-photon nonlinearity revealed here provides a promising strategy in fabricating nanoplasmonic devices with both pronounced nonlinearities and good figures of merit. |
| 收录类别 | SCI |
| 原文出处 | http://pubs.acs.org/doi/full/10.1021/acs.nanolett.5b00413 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/6569]  |
| 专题 | 深圳先进技术研究院_集成所 |
| 作者单位 | NANO LETTERS |
| 推荐引用方式 GB/T 7714 | Fan Nan,Ya-Fang Zhang,Xiaoguang Li,et al. Unusual and Tunable One-Photon Nonlinearity in Gold-Dye Plexcitonic Fano Systems[J]. NANO LETTERS,2015. |
| APA | Fan Nan.,Ya-Fang Zhang.,Xiaoguang Li.,Xiao-Tian Zhang.,Hang Li.,...&Zhenyu Zhang.(2015).Unusual and Tunable One-Photon Nonlinearity in Gold-Dye Plexcitonic Fano Systems.NANO LETTERS. |
| MLA | Fan Nan,et al."Unusual and Tunable One-Photon Nonlinearity in Gold-Dye Plexcitonic Fano Systems".NANO LETTERS (2015). |
入库方式： OAI收割
来源：深圳先进技术研究院
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