# Microsphere-assisted generation of localized optical emitters in 2D hexagonal boron nitride

https://mdr.nims.go.jp/datasets/d24aa2ac-27d7-4da8-8e2d-5ea4d3b14b17

## File

- [10.1515_nanoph-2024-0625.pdf](https://mdr.nims.go.jp/filesets/5e4b5ebe-e7c2-4baa-91db-ec1463101b38/download) ([Detail](https://mdr.nims.go.jp/filesets/5e4b5ebe-e7c2-4baa-91db-ec1463101b38.md))

## Id

d24aa2ac-27d7-4da8-8e2d-5ea4d3b14b17

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-04-03T02:11:02.624766Z

## Updated at

2026-04-03T04:04:39.165438Z

## Published at

2026-04-03T07:27:43.698703Z

## Doi



## First published url

https://doi.org/10.1515/nanoph-2024-0625

## Date published

2025-06-05

## Recorded date published

2025-7

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Microsphere-assisted generation of localized optical emitters in 2D hexagonal
    boron nitride
  title_type: original
  lang: en

## Description

- description: 'Crystal defects in hexagonal boron nitride (hBN), are emerging as
    versatile nanoscale optical probes with a wide application profile, spanning the
    fields of nanophotonics, biosensing, bioimaging and quantum information processing.
    However, generating these crystal defects as reliable optical emitters remains
    challenging due to the need for deterministic defect placement and precise control
    of the emission area. Here, we demonstrate an approach that integrates microspheres
    (MS) with hBN optical probes to enhance both defect generation and optical signal
    readout. This technique harnesses MS to amplify light-matter interactions at the
    nanoscale through two mechanisms: focused femtosecond (fs) laser irradiation into
    a photonic nanojet for highly localized defect generation, and enhanced light
    collection via the whispering gallery mode effect. Our MS-assisted defect generation
    method reduces the emission area by a factor of 5 and increases the fluorescence
    collection efficiency by approximately 10 times compared to MS-free samples. These
    advancements in defect generation precision and signal collection efficiency open
    new possibilities for optical emitter manipulation in hBN, with potential applications
    in quantum technologies and nanoscale sensing.'
  description_type: abstract
  lang: und

## Creator

- name: Xiliang Yang
  role: author
- name: Dong Hoon Shin
  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: Peter G. Steeneken
  role: author
- name: Sabina Caneva
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: hexagonal boron nitride
  schema: not_defined
- subject: microsphere
  schema: not_defined
- subject: laser fabrication
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-06-05

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nanophotonics
  issn: '21928614'
  volume: '14'
  issue: '14'
  start_page: 2419
  end_page: 2430

## Conference



## Related item



## Funding

- identifier: '101041486'
  funder_name: H2020 European Research Council

## 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



## Software



## Custom property



## Fileset

- id: 5e4b5ebe-e7c2-4baa-91db-ec1463101b38
  filename: 10.1515_nanoph-2024-0625.pdf
  content_type: application/pdf
  size: 2826701
  md5: be1bd41fdb7b2e5999d65e081182b797

## Thumbnail

fileset_id: 5e4b5ebe-e7c2-4baa-91db-ec1463101b38
filename: 10.1515_nanoph-2024-0625.pdf