# Self-Aligned Hybrid Nanocavities Using Atomically Thin Materials

https://mdr.nims.go.jp/datasets/813c1406-e02a-4918-971a-63ddf629ee63

## File

- [fong-et-al-2024-self-aligned-hybrid-nanocavities-using-atomically-thin-materials.pdf](https://mdr.nims.go.jp/filesets/a8eee85a-bd81-4ba6-8f36-04c302250167/download) ([Detail](https://mdr.nims.go.jp/filesets/a8eee85a-bd81-4ba6-8f36-04c302250167.md))

## Id

813c1406-e02a-4918-971a-63ddf629ee63

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-13T07:55:24.635356Z

## Updated at

2025-02-14T03:31:17.951697Z

## Published at

2025-02-14T03:31:18.050878Z

## Doi



## First published url

https://doi.org/10.1021/acsphotonics.3c01927

## Date published

2024-06-19

## Recorded date published

2024-6-19

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Self-Aligned Hybrid Nanocavities Using Atomically Thin Materials
  title_type: original
  lang: en

## Description

- description: Two-dimensional (2D) van der Waals layered materials are often integrated
    with photonic crystal (PhC) nanocavity to enhance light-matter coupling. However,
    the transfer of 2D materials onto PhC nanocavities often degrades the cavity quality
    (Q) factor. Instead of using prefabricated PhC nanocavities, we demon- strate
    a novel approach to form a hybrid nanocavity by placing a suitably-sized 2D material
    flake on a PhC waveguide. We successfully fabricated such hybrid nanocavity devices
    with hBN, WSe2 and MoTe2 flakes on silicon PhC waveguides, obtaining Q factors
    as high as 4.0×105. Remarkably, even mono- and few- layer flakes can provide sufficient
    local refractive index modulation to induce nanocavity formation. Since the 2D
    material is self-aligned to the nanocavity, we have also managed to observe cavity
    PL enhancement in a MoTe2 hybrid cavity device, with a cavity Purcell enhancement
    factor of ∼15. Our results highlights the prospect of using such 2D materials-induced
    PhC nanocavity to realize a wide range of photonic com- ponents for hybrid devices
    and integrated photonic circuits.
  description_type: abstract
  lang: und

## Creator

- name: Chee Fai Fong
  role: author
- name: Daiki Yamashita
  role: author
- name: Nan Fang
  role: author
- name: Shun Fujii
  role: author
- name: Yih-Ren Chang
  role: author
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Yuichiro K. Kato
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: 2D materials
  schema: not_defined
- subject: hybrid photonics
  schema: not_defined
- subject: nanocavities
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: ACS Photonics
  issn: '23304022'
  volume: '11'
  issue: '6'
  start_page: 2247
  end_page: 2254

## Conference



## Related item



## Funding

- identifier: JPMXP1222UT1138
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- funder_name: RIKEN
- identifier: JP20H02558
  funder_name: Japan Society for the Promotion of Science
- identifier: JP20J00817
  funder_name: Japan Society for the Promotion of Science
- identifier: JP21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: JP22F22350
  funder_name: Japan Society for the Promotion of Science
- identifier: JP22K14623
  funder_name: Japan Society for the Promotion of Science
- identifier: JP22K14624
  funder_name: Japan Society for the Promotion of Science
- identifier: JP22K14625
  funder_name: Japan Society for the Promotion of Science
- identifier: JP23H00262
  funder_name: Japan Society for the Promotion of Science
- identifier: JP23H02052
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: a8eee85a-bd81-4ba6-8f36-04c302250167
  filename: fong-et-al-2024-self-aligned-hybrid-nanocavities-using-atomically-thin-materials.pdf
  content_type: application/pdf
  size: 6262021
  md5: 3b175e2fd44cd5538fb6fa5c24538c48

## Thumbnail

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filename: fong-et-al-2024-self-aligned-hybrid-nanocavities-using-atomically-thin-materials.pdf