Deuterogenic Plasmonic Vortices

Yuanjie Yang*, Lixiang Wu, Yidong Liu, Dekun Xie, Zhongwei Jin, Jiafang Li, Guangwei Hu, Cheng Wei Qiu*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

44 引用 (Scopus)

摘要

The optical vortex on a chip is of extreme importance for many applications in nanoscience, and as well-known, the chiral metallic nanostructures like plasmonic vortex lenses (PVLs) can produce a spin-dependent plasmonic vortex (PV) which is governed by plasmonic spin-orbit coupling. The well-established nanophotonic theory and various experimental demonstrations all show a single PV mode in one PVL, when the excitation is fixed. Here, counterintuitively, we report the existence of the nontrivial deuterogenic PVs, besides the one predicted previously. We theoretically reveal a general spin-to-orbit coupling and experimentally demonstrate the surprising existence of multiple PVs in a single PVL even when excited by a fixed circularly polarized vortex beam. This work provides a deeper fundamental understanding of the dynamics and the near-field spin-orbit coupling in nanophotonics, which promises to flexibly manipulate the PV for emerging optical vortex-based nanotechnologies and quantum optical applications on a chip.

源语言英语
页(从-至)6774-6779
页数6
期刊Nano Letters
20
9
DOI
出版状态已出版 - 9 9月 2020

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