# Unzipping hBN with ultrashort mid-infrared pulses

https://mdr.nims.go.jp/datasets/72ff8f4b-d119-401f-b2da-fb8fd26004d5

## File

- [sciadv.adi3653.pdf](https://mdr.nims.go.jp/filesets/ced4cf20-6fb6-441f-8ba2-a0026fa2ee02/download) ([Detail](https://mdr.nims.go.jp/filesets/ced4cf20-6fb6-441f-8ba2-a0026fa2ee02.md))

## Id

72ff8f4b-d119-401f-b2da-fb8fd26004d5

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-18T01:52:49.872778Z

## Updated at

2025-02-23T13:46:47.775062Z

## Published at

2025-02-23T13:46:47.867502Z

## Doi



## First published url

https://doi.org/10.1126/sciadv.adi3653

## Date published

2024-05-03

## Recorded date published

2024-5-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Unzipping hBN with ultrashort mid-infrared pulses
  title_type: original
  lang: en

## Description

- description: Manipulating the nanostructure of materials is critical for numerous
    applications in electronics magnetics, and photonics. However, conventional methods
    such as lithography, etching, and laser-writing require cleanroom facilities or
    leave residue. Here, we describe a new approach to create atomically sharp line
    defects in hexagonal boron nitride (hBN) at room temperature by direct optical
    phonon excitation in the mid-infrared (mid-IR). We term this phenomenon “unzipping”
    to describe the rapid formation and growth of a <30-nm-wide crack from a point
    within the laser-driven region. The formation of these features is attributed
    to large atomic displacements and high local bond strain from driving the crystal
    at a natural resonance. This process is distinguished by (i) occurring only under
    resonant phonon excitation, (ii) producing highly sub-wavelength features, and
    (iii) sensitivity to crystal orientation and pump laser polarization. Its cleanliness,
    directionality, and sharpness enable applications in in-situ flake cleaving and
    phonon-wave-coupling via free space optical excitation.
  description_type: abstract
  lang: und

## Creator

- name: Cecilia Y. Chen
  role: author
- name: Samuel L. Moore
  role: author
- name: Rishi Maiti
  role: author
- name: Jared S. Ginsberg
  role: author
- name: M. Mehdi Jadidi
  role: author
- name: Baichang Li
  role: author
- name: Sang Hoon Chae
  role: author
- name: Anjaly Rajendran
  role: author
- name: Gauri N. Patwardhan
  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: James Hone
  role: author
- name: D. N. Basov
  role: author
- name: Alexander L. Gaeta
  role: author

## Contact agent



## Publisher

organization: American Association for the Advancement of Science (AAAS)

## Managing organization



## Keyword

- subject: Nanostructure
  schema: not_defined
- subject: hexagonal boron nitride
  schema: not_defined
- subject: optical phonon excitation
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Science Advances
  issn: '23752548'
  volume: '10'
  issue: '18'
  article_number: eadi3653

## Conference



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## Chemical composition



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## Fileset

- id: ced4cf20-6fb6-441f-8ba2-a0026fa2ee02
  filename: sciadv.adi3653.pdf
  content_type: application/pdf
  size: 940628
  md5: '08d225aae85a37a8a14c6edbeb0b4c73'

## Thumbnail

fileset_id: ced4cf20-6fb6-441f-8ba2-a0026fa2ee02
filename: sciadv.adi3653.pdf