All-Optically Reconfigurable Plasmonic Metagrating for Ultrafast Diffraction Management
文献类型：期刊论文
| 作者 | Schirato, Andrea; Mazzanti, Andrea; Zaccaria, Remo Proietti; Nordlander, Peter; Alabastri, Alessandro; Della Valle, Giuseppe |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2021 |
| 卷号 | 21期号:3页码:1345-1351 |
| 英文摘要 | Hot-electron dynamics taking place in nanostructured materials upon irradiation with Is-laser pulses has been the subject of intensive research, leading to the emerging field of ultrafast nanophotonics. However, the most common description of nonlinear interaction with ultrashort laser pulses assumes a homogeneous spatial distribution for the photogenerated carriers. Here we theoretically show that the inhomogeneous evolution of the hot carriers at the nanoscale can disclose unprecedented opportunities for ultrafast diffraction management. In particular, we design a highly symmetric plasmonic metagrating capable of a transient symmetry breaking driven by hot electrons. The subsequent power imbalance between symmetrical diffraction orders is calculated to exceed 20% under moderate (similar to 2 mJ/cm(2)) laser fluence. Our theoretical investigation also indicates that the recovery time of the symmetric configuration can be controlled by tuning the geometry of the metaatom, and can be as fast as 2 ps for electrically connected configurations. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22202]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Della Valle, G (corresponding author), CNR, Ist Foton & Nanotecnol, I-20133 Milan, Italy. 2.Della Valle, G (corresponding author), Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy. 3.Alabastri, A (corresponding author), Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA. |
| 推荐引用方式 GB/T 7714 | Schirato, Andrea,Mazzanti, Andrea,Zaccaria, Remo Proietti,et al. All-Optically Reconfigurable Plasmonic Metagrating for Ultrafast Diffraction Management[J]. NANO LETTERS,2021,21(3):1345-1351. |
| APA | Schirato, Andrea,Mazzanti, Andrea,Zaccaria, Remo Proietti,Nordlander, Peter,Alabastri, Alessandro,&Della Valle, Giuseppe.(2021).All-Optically Reconfigurable Plasmonic Metagrating for Ultrafast Diffraction Management.NANO LETTERS,21(3),1345-1351. |
| MLA | Schirato, Andrea,et al."All-Optically Reconfigurable Plasmonic Metagrating for Ultrafast Diffraction Management".NANO LETTERS 21.3(2021):1345-1351. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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