# Observation of hyperbolic intersubband polaritons in native-dielectric-doped van der Waals semiconductor quantum wells

https://mdr.nims.go.jp/datasets/e3e9571d-d352-4eb7-8fb3-0348169a7443

## File

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## Id

e3e9571d-d352-4eb7-8fb3-0348169a7443

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-05-04T07:02:04.130697Z

## Updated at

2026-05-11T04:06:31.458056Z

## Published at

2026-05-11T07:25:08.468859Z

## Doi



## First published url

https://doi.org/10.1038/s41467-025-65196-y

## Date published

2025-11-19

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Observation of hyperbolic intersubband polaritons in native-dielectric-doped
    van der Waals semiconductor quantum wells
  title_type: original
  lang: en

## Description

- description: Highly doped semiconductor quantum wells (QWs) exhibit strong intersubband
    transitions resulting from the nanoscale confinement of electrons. The coupling
    of photons to these collective electronic dipoles in this anisotropic quantum
    structure enables intersubband polaritons with a strong nonlinear optical response
    and hyperbolicity. Analogous to the well-established epitaxially grown multi-quantum
    wells, two-dimensional (2D) van der Waals (vdW) semiconductor heterostructures
    provide a compelling alternative platform for this phenomenon, offering an additional
    degree of freedom and exceptional optoelectronic properties Here we report the
    realization of intersubband polaritons in multilayer vdW QWs with broadband tunability
    across the mid-infrared, from 98 to 270 meV. By engineering the top layer of WSe₂
    into a self-limiting native oxide, we activate charge transfer that enables controlled
    high-density doping. This doping regime allows strong intersubband transitions
    and the emergence of polaritonic behavior, which we directly visualize through
    their dispersive propagation. Lithographically defined nanostructures further
    reveal the hyperbolic nature of these polaritons, enabling sub-diffractional confinement
    in resonant geometries. Moreover, we demonstrate electrical tunability via electrostatic
    gating, offering dynamic control over polaritonic dispersion. These results position
    vdW quantum wells as a highly adaptable materials platform for tunable mid-infrared
    nanophotonics, with potential applications in integrated polaritonic circuits,
    photodetectors, and light sources.
  description_type: abstract
  lang: und

## Creator

- name: Yue Luo
  role: author
- name: Dapeng Ding
  role: author
- name: Andres M. Mier Valdivia
  role: author
- name: Daniel T. Larson
  role: author
- name: Song Liu
  role: author
- name: Hong Kuan Ng
  role: author
- name: Jing Wu
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Efthimios Kaxiras
  role: author
- name: Hongkun Park
  role: author
- name: Philip Kim
  role: author
- name: William L. Wilson
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: intersubband polaritons
  schema: not_defined
- subject: van der Waals quantum wells
  schema: not_defined
- subject: WSe2
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-11-19

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '16'
  issue: '1'
  start_page: 10158
  end_page: 10158
  article_number: '10158'

## Conference



## Related item



## Funding

- identifier: '9247710104'
  funder_name: National Natural Science Foundation of China

## Instrument



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## Measurement method



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## Fileset

- id: da96a9e1-a73f-4b35-a82a-6500145de772
  filename: s41467-025-65196-y.pdf
  content_type: application/pdf
  size: 1684398
  md5: bdfbf26a37d5a0229e8c1908d5ea2e66

## Thumbnail

fileset_id: da96a9e1-a73f-4b35-a82a-6500145de772
filename: s41467-025-65196-y.pdf