# Interaction-Induced ac Stark Shift of Exciton-Polaron Resonances

https://mdr.nims.go.jp/datasets/f701ee42-bb97-493d-b996-1d24de8e8649

## File

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## Id

f701ee42-bb97-493d-b996-1d24de8e8649

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-27T06:52:14.206969Z

## Updated at

2025-08-28T07:30:20.574846Z

## Published at

2025-08-28T07:19:50.832650Z

## Doi



## First published url

https://doi.org/10.1103/physrevlett.132.056901

## Date published

2024-01-29

## Recorded date published

2024-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Interaction-Induced ac Stark Shift of Exciton-Polaron Resonances
  title_type: original
  lang: en

## Description

- description: Laser induced shift of atomic states due to the AC-Stark effect has
    played a central role in cold-atom physics and facilitated their emergence as
    analog quantum simulators. Here, we explore this phenomena in an atomically thin
    layer of semiconductor MoSe<sub>2</sub>, which we embedded in a heterostructure
    enabling charge tunability. Shining an intense pump laser with a small detuning
    from the material resonances, we generate a large population of virtual collective
    excitations, and achieve a regime where interactions with this background population
    is the leading contribution to the AC-Stark shift. Using this technique we study
    how itinerant charges modify – and dramatically enhance – the interactions between
    optical excitations. In particular, our experiments show that the interaction
    between attractive polarons could be more than an order of magnitude stronger
    than those between bare excitons.
  description_type: abstract
  lang: en

## Creator

- name: T. Uto
  role: author
- name: B. Evrard
  role: author
- name: K. Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: T. Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: M. Kroner
  role: author
- name: A. İmamoğlu
  role: author

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: AC-Stark effect
  schema: not_defined
- subject: MoSe2 semiconductor
  schema: not_defined
- subject: Attractive polarons
  schema: not_defined

## Rights

- description: "© 2024 American Physical Society"
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review Letters
  issn: '10797114'
  volume: '132'
  issue: '5'
  article_number: '056901'

## Conference



## Related item



## Funding

- identifier: '200020_207520'
  funder_name: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen
    Forschung

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Custom property



## Fileset

- id: fd09349f-c291-4548-9d12-32d7e75c9b8d
  filename: 2024A00179G_AM_Lightshift_MoSe2.pdf
  content_type: application/pdf
  size: 504792
  md5: 0e613105fe6862a3a611a94d0d14ce22
- id: 9d367c8d-5fa5-48f7-882d-544a64b5a806
  filename: 2024A00179G_Lightshift_MoSe2_SM.pdf
  content_type: application/pdf
  size: 449236
  md5: 79b64061d73c85536836f5e265115819

## Thumbnail

fileset_id: fd09349f-c291-4548-9d12-32d7e75c9b8d
filename: 2024A00179G_AM_Lightshift_MoSe2.pdf