# Terahertz phonon engineering with van der Waals heterostructures

https://mdr.nims.go.jp/datasets/39f7faac-1d2b-446b-abf1-b29ddc954327

## Files

- [2024A00845G_Nature_Yoon_Accepted.pdf](https://mdr.nims.go.jp/filesets/5d7ea0a4-e975-441b-9441-e35064e8fe12/download) ([Detail](https://mdr.nims.go.jp/filesets/5d7ea0a4-e975-441b-9441-e35064e8fe12.md))

## Id

39f7faac-1d2b-446b-abf1-b29ddc954327

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-09-04T05:35:55.896643Z

## Updated at

2025-09-05T07:30:32.106199Z

## Published at

2025-09-05T07:19:23.800096Z

## Doi



## First published url

https://doi.org/10.1038/s41586-024-07604-9

## Date published

2024-07-25

## Recorded date published

2024-7-25

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Terahertz phonon engineering with van der Waals heterostructures
  title_type: original
  lang: en

## Description

- description: Phononic engineering at gigahertz (GHz) frequencies form the foundation
    of microwave acoustic filters, acousto-optic modulators, and quantum transducers.
    Terahertz (THz) phononic engineering could lead to acoustic filters and modulators
    at higher bandwidth and speed, as well as quantum circuits operating at higher
    temperatures. Despite its potential, methods for engineering THz phonons have
    been limited due to the challenges of achieving the required material control
    at sub-nanometer precision and efficient phonon coupling at THz frequencies. Here,
    we demonstrate efficient generation, detection, and manipulation of THz phonons
    through precise integration of atomically thin layers in van der Waals heterostructures.
    We employ few-layer graphene (FLG) as an ultrabroadband phonon transducer, converting
    femtosecond near-infrared pulses to acoustic phonon pulses with spectral content
    up to 3 THz. A monolayer WSe<sub>2</sub> is used as a sensor, where high-fidelity
    readout is enabled by the exciton-phonon coupling and strong light-matter interactions.
    Combining these capabilities in a single heterostructure and detecting responses
    to incident mechanical waves, we perform THz phononic spectroscopy. Using this
    platform, we demonstrate high-Q THz phononic cavities and show that a monolayer
    WSe<sub>2</sub> embedded in hexagonal boron nitride (hBN) can efficiently block
    the transmission of THz phonons. By comparing our measurements to a nanomechanical
    model, we obtain the force constants at the heterointerfaces. Our results could
    enable THz phononic metamaterials for ultrabroadband acoustic filters and modulators,
    and open novel routes for thermal engineering.
  description_type: abstract
  lang: en

## Creator

- name: Yoseob Yoon
  role: author
- name: Zheyu Lu
  role: author
- name: Can Uzundal
  role: author
- name: Ruishi Qi
  role: author
- name: Wenyu Zhao
  role: author
- name: Sudi Chen
  role: author
- name: Qixin Feng
  role: author
- name: Woochang Kim
  role: author
- name: Mit H. Naik
  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: Steven G. Louie
  role: author
- name: Michael F. Crommie
  role: author
- name: Feng Wang
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: THz phonons
  schema: not_defined
- subject: van der Waals heterostructures
  schema: not_defined
- subject: Phononic engineering
  schema: not_defined

## Rights

- description: 'This version of the article has been accepted for publication, after
    peer review (when applicable) and is subject to Springer Nature’s <a href="https://www.springernature.com/gp/open-science/policies/accepted-manuscript-terms">AM
    terms of use</a>, but is not the Version of Record and does not reflect post-acceptance
    improvements, or any corrections. The Version of Record is available online at:
    http://dx.doi.org/10.1038/s41586-024-07604-9'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-06-26
end_date: 2024-12-26

## Journal

- title: Nature
  issn: '00280836'
  volume: '631'
  issue: '8022'
  start_page: 771
  end_page: 776

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## Fileset

- id: 5d7ea0a4-e975-441b-9441-e35064e8fe12
  filename: 2024A00845G_Nature_Yoon_Accepted.pdf
  content_type: application/pdf
  size: 8980109
  md5: 61b9ba6551d930236291df8eeb5834f5

## Thumbnail

fileset_id: 5d7ea0a4-e975-441b-9441-e35064e8fe12
filename: 2024A00845G_Nature_Yoon_Accepted.pdf