Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light–MoS<sub>2</sub> interactions

Hua Lu; Zengji Yue; Yangwu Li; Yinan Zhang; Mingwen Zhang; Wei Zeng; Xuetao Gan; Dong Mao; Fajun Xiao; Ting Mei; Weiyao Zhao; Xiaolin Wang; Min Gu; Jianlin Zhao

doi:10.1038/s41377-020-00429-x

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Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light–MoS₂ interactions

Original Articles

- Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light–MoS₂ interactions
- Light: Science & Applications Vol. 9, Issue 6, Pages: 1956-1965(2020)
- Affiliations：
  
  1.MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, 710129 Xi'an, China
  2.Institute for Superconducting & Electronic Materials and ARC Centre of Excellence in Future Low-Energy Electronics, University of Wollongong, North Wollongong, NSW 2500, Australia
  3.Center for Artificial-Intelligence Nanophotonics, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, 200093 Shanghai, China
  4.Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, 510632 Guangzhou, China
  5.State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, 710072 Xi'an, China
- Author bio：
  
  Hua Lu (hualu@nwpu.edu.cn)
  Yinan Zhang (zhangyinan@jnu.edu.cn)
  Jianlin Zhao (jlzhao@nwpu.edu.cn)
- Funds：
- DOI：10.1038/s41377-020-00429-x
  CLC：
- Published：2020，
  
  Published Online：23 November 2020，
  
  Received：02 June 2020，
  
  Revised：30 October 2020，
  
  Accepted：06 November 2020
- Accepted：
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Lu, H. et al. Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light–MoS₂ interactions. Light: Science & Applications, 9, 1956-1965 (2020).
DOI：

Lu, H. et al. Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light–MoS₂ interactions. Light: Science & Applications, 9, 1956-1965 (2020). DOI： 10.1038/s41377-020-00429-x.

摘要

Abstract

Magnetic resonances not only play crucial roles in artificial magnetic materials but also offer a promising way for light control and interaction with matter. Recently

magnetic resonance effects have attracted special attention in plasmonic systems for overcoming magnetic response saturation at high frequencies and realizing high-performance optical functionalities. As novel states of matter

topological insulators (TIs) present topologically protected conducting surfaces and insulating bulks in a broad optical range

providing new building blocks for plasmonics. However

until now

high-frequency (e.g. visible range) magnetic resonances and related applications have not been demonstrated in TI systems. Herein

we report for the first time

to our knowledge

a kind of visible range magnetic plasmon resonances (MPRs) in TI structures composed of nanofabricated Sb

nanogrooves. The experimental results show that the MPR response can be tailored by adjusting the nanogroove height

width

and pitch

which agrees well with the simulations and theoretical calculations. Moreover

we innovatively integrated monolayer MoS

onto a TI nanostructure and observed strongly reinforced light–MoS

interactions induced by a significant MPR-induced electric field enhancement

remarkable compared with TI-based electric plasmon resonances (EPRs). The MoS

photoluminescence can be flexibly tuned by controlling the incident light polarization. These results enrich TI optical physics and applications in highly efficient optical functionalities as well as artificial magnetic materials at high frequencies.

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Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light–MoS2 interactions

DOI：10.1038/s41377-020-00429-x

摘要

Abstract

关键词

Keywords

references

Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light–MoS₂ interactions