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DOI | 10.1038/s41467-018-08139-0 |
Ultra-confined surface phonon polaritons in molecular layers of van der Waals dielectrics | |
Dubrovkin, Alexander M.1; Qiang, Bo1; Krishnamoorthy, Harish N. S.1; Zheludev, Nikolay I.1,2,3; Wang, Qi Jie1,4 | |
2019-01-11 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | Singapore; England |
英文摘要 | Improvements in device density in photonic circuits can only be achieved with interconnects exploiting highly confined states of light. Recently this has brought interest to highly confined plasmon and phonon polaritons. While plasmonic structures have been extensively studied, the ultimate limits of phonon polariton squeezing, in particular enabling the confinement (the ratio between the excitation and polariton wavelengths) exceeding 10(2), is yet to be explored. Here, exploiting unique structure of 2D materials, we report for the first time that atomically thin van der Waals dielectrics (e.g., transition-metal dichalcogenides) on silicon carbide substrate demonstrate experimentally record-breaking propagating phonon polaritons confinement resulting in 190-times squeezed surface waves. The strongly dispersive confinement can be potentially tuned to greater than 10(3) near the phonon resonance of the substrate, and it scales with number of van der Waals layers. We argue that our findings are a substantial step towards infrared ultra-compact phonon polaritonic circuits and resonators, and would stimulate further investigations on nanophotonics in non-plasmonic atomically thin interface platforms. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000431206400003 |
WOS关键词 | NEAR-FIELD MICROSCOPY ; BORON-NITRIDE ; GRAPHENE ; PLASMONS ; MOS2 |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204158 |
专题 | 资源环境科学 |
作者单位 | 1.Nanyang Technol Univ, SPMS, TPI, Ctr Disrupt Photon Technol, Singapore 637371, Singapore; 2.Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England; 3.Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England; 4.Nanyang Technol Univ, Sch Elect & Elect Engn, Ctr OptoElect & Biophoton, OPTIMUS, Singapore 639798, Singapore |
推荐引用方式 GB/T 7714 | Dubrovkin, Alexander M.,Qiang, Bo,Krishnamoorthy, Harish N. S.,et al. Ultra-confined surface phonon polaritons in molecular layers of van der Waals dielectrics[J]. NATURE COMMUNICATIONS,2019,9. |
APA | Dubrovkin, Alexander M.,Qiang, Bo,Krishnamoorthy, Harish N. S.,Zheludev, Nikolay I.,&Wang, Qi Jie.(2019).Ultra-confined surface phonon polaritons in molecular layers of van der Waals dielectrics.NATURE COMMUNICATIONS,9. |
MLA | Dubrovkin, Alexander M.,et al."Ultra-confined surface phonon polaritons in molecular layers of van der Waals dielectrics".NATURE COMMUNICATIONS 9(2019). |
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