Versatile optical manipulation of trions, dark excitons and biexcitons through contrasting exciton-photon coupling

Zhe Li; Xin-Yuan Zhang; Rundong Ma; Tong Fu; Yan Zeng; Chong Hu; Yufeng Cheng; Cheng Wang; Yun Wang; Yuhua Feng; Takashi Taniguchi; Kenji Watanabe; Ti Wang; Xiaoze Liu; Hongxing Xu

doi:10.1038/s41377-023-01338-5

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Versatile optical manipulation of trions, dark excitons and biexcitons through contrasting exciton-photon coupling

Original Articles

- Versatile optical manipulation of trions, dark excitons and biexcitons through contrasting exciton-photon coupling
- Light: Science & Applications Vol. 12, Issue 12, Pages: 2802-2810(2023)
- Affiliations：
  
  1.School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education, Wuhan University, 430072 Wuhan, China
  2.Wuhan University Shenzhen Research Institute, 518057 Shenzhen, China
  3.Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 211816 Nanjing, China
  4.International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, 305-0044 Tsukuba, Japan
  5.Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, 305-0044 Tsukuba, Japan
  6.Wuhan Institute of Quantum Technology, 430206 Wuhan, China
  7.School of Microelectronics, Wuhan University, 430072 Wuhan, China
  8.Henan Academy of Sciences, 450046 Zhengzhou, China
- Author bio：
  
  Ti Wang (wangti@whu.edu.cn)
  Xiaoze Liu (xiaozeliu@whu.edu.cn)
  Hongxing Xu (hxxu@whu.edu.cn)
- Funds：
- DOI：10.1038/s41377-023-01338-5
  CLC：
- Published：31 December 2023，
  
  Published Online：07 December 2023，
  
  Received：12 July 2023，
  
  Revised：08 November 2023，
  
  Accepted：12 November 2023
- Accepted：
Scan QR Code
Li, Z. et al. Versatile optical manipulation of trions, dark excitons and biexcitons through contrasting exciton-photon coupling. Light: Science & Applications, 12, 2802-2810 (2023).
DOI：

Li, Z. et al. Versatile optical manipulation of trions, dark excitons and biexcitons through contrasting exciton-photon coupling. Light: Science & Applications, 12, 2802-2810 (2023). DOI： 10.1038/s41377-023-01338-5.

摘要

Abstract

Various exciton species in transition metal dichalcogenides (TMDs)

such as neutral excitons

trions (charged excitons)

dark excitons

and biexcitons

have been individually discovered with distinct light-matter interactions. In terms of valley-spin locked band structures and electron-hole configurations

these exciton species demonstrate flexible control of emission light with degrees of free

dom (DOFs) such as intensity

polarization

frequency

and dynamics. However

it remains elusive to fully manipulate different exciton species on demand for practical photonic applications. Here

we investigate the contrasting light-matter interactions to control multiple DOFs of emission light in a hybrid monolayer WSe

-Ag nanowire (NW) structure by taking advantage of various exciton species. These excitons

including trions

dark excitons

and biexcitons

are found to couple independently with propagating surface plasmon polaritons (SPPs) of Ag NW in quite different ways

thanks to the orientations of transition dipoles. Consistent with the simulations

the dark excitons and dark trions show extremely high coupling efficiency with SPPs

while the trions demonstrate directional chiral-coupling features. This study presents a crucial step towards the ultimate goal of exploiting the comprehensive spectrum of TMD excitons for optical information processing and quantum optics.

关键词

Keywords

references

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