Manipulating nonlinear exciton polaritons in an atomically-thin semiconductor with artificial potential landscapes

Yuan Luo; Quanbing Guo; Xinyi Deng; Sanjib Ghosh; Qing Zhang; Hongxing Xu; Qihua Xiong

doi:10.1038/s41377-023-01268-2

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Manipulating nonlinear exciton polaritons in an atomically-thin semiconductor with artificial potential landscapes

Original Articles

- Manipulating nonlinear exciton polaritons in an atomically-thin semiconductor with artificial potential landscapes
- Light: Science & Applications Vol. 12, Issue 10, Pages: 2163-2171(2023)
- Affiliations：
  
  1.State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
  2.Wuhan Institute of Quantum Technology, Wuhan 430206, China
  3.School of Materials Science and Engineering, Peking University, Beijing 100871, China
  4.Beijing Academy of Quantum Information Sciences, Beijing 100193, China
  5.School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan University, Wuhan 430072, China
  6.Frontier Science Center for Quantum Information, Beijing 100084, China
  7.Collaborative Innovation Center of Quantum Matter, Beijing, China
- Author bio：
  
  Hongxing Xu (hxxu@whu.edu.cn)
  Qihua Xiong (qihua_xiong@tsinghua.edu.cn)
- Funds：
- DOI：10.1038/s41377-023-01268-2
  CLC：
- Published：31 October 2023，
  
  Published Online：08 September 2023，
  
  Received：01 February 2023，
  
  Revised：08 August 2023，
  
  Accepted：18 August 2023
- Accepted：
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Luo, Y. et al. Manipulating nonlinear exciton polaritons in an atomically-thin semiconductor with artificial potential landscapes. Light: Science & Applications, 12, 2163-2171 (2023).
DOI：

Luo, Y. et al. Manipulating nonlinear exciton polaritons in an atomically-thin semiconductor with artificial potential landscapes. Light: Science & Applications, 12, 2163-2171 (2023). DOI： 10.1038/s41377-023-01268-2.

摘要

Abstract

Exciton polaritons in atomically thin transition-metal dichalcogenide microcavities provide a versatile platform for advancing optoelectronic devices and studying the interacting Bosonic physics at ambient conditions. Rationally engineering the favorable properties of polaritons is critically required for the rapidly growing research. Here

we demonstrate the manipulation of nonlinear polaritons with the lithographically defined potential landscapes in monolayer WS

microcavities. The discretization of photoluminescence dispersions and spatially confined patterns indicate the deterministic on-site localization of polaritons by the artificial mesa cavities. Varying the trapping sizes

the polariton-reservoir interaction strength is enhanced by about six times through managing the polariton–exciton spatial overlap. Meanwhile

the coherence of trapped polaritons is significantly improved due to the spectral narrowing and tailored in a picosecond range. Therefore

our work not only offers a convenient approach to manipulating the nonlinearity and coherence of polaritons but also opens up possibilities for exploring many-body phenomena and developing novel polaritonic devices based on 2D materials.

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Keywords

references

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