# Two-dimensional cuprate nanodetector with single telecom photon sensitivity at T = 20 K

https://mdr.nims.go.jp/datasets/85f94b05-69eb-465a-9713-4f62720014b5

## Files

- [Merino_2023_2D_Mater._10_021001.pdf](https://mdr.nims.go.jp/filesets/9765ee9b-8f97-402f-9824-8acd8345ddcb/download) ([Detail](https://mdr.nims.go.jp/filesets/9765ee9b-8f97-402f-9824-8acd8345ddcb.md))

## Id

85f94b05-69eb-465a-9713-4f62720014b5

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-13T05:58:11.769786Z

## Updated at

2025-02-13T07:30:19.204328Z

## Published at

2025-02-13T07:30:19.414253Z

## Doi



## First published url

https://doi.org/10.1088/2053-1583/acb4a8

## Date published

2023-04-01

## Recorded date published

2023-4-1

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Two-dimensional cuprate nanodetector with single telecom photon sensitivity
    at T = 20 K
  title_type: original
  lang: en

## Description

- description: Detecting light at the single-photon level is one of the pillars of
    emergent photonic technologies. This is realized through state-of-the-art superconducting
    detectors that offer efficient, broadband and fast response. However, the use
    of superconducting thin films with low TC limits their operation temperature below
    4K. In this work, we demonstrate proof-of-concept nanodetectors based on exfoliated,
    two-dimensional cuprate superconductor Bi2Sr2CaCu2O8-δ (BSCCO) that exhibit single-photon
    sensitivity at telecom wavelength at a record temperature of T = 20K. These non-optimized
    devices exhibit a slow (~ ms) reset time and a low detection efficiency (~ 10^(-4)).
    We realize the elusive prospect of single-photon sensitivity on a high-TC nanodetector
    thanks to a novel approach, combining van der Waals fabrication techniques and
    a non-invasive nanopatterning based on light ion irradiation. This result paves
    the way for broader application of single-photon technologies, relaxing the cryogenic
    constraints for single-photon detection at telecom wavelength.
  description_type: abstract
  lang: und

## Creator

- name: Rafael Luque Merino
  role: author
- name: Paul Seifert
  role: author
- name: José Durán Retamal
  role: author
- name: Roop K Mech
  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: Kazuo Kadowaki
  role: author
- name: Robert H Hadfield
  role: author
- name: Dmitri K Efetov
  role: author

## Contact agent



## Publisher

organization: IOP Publishing

## Managing organization



## Keyword

- subject: Single-photon detectors
  schema: not_defined
- subject: cuprate superconductor
  schema: not_defined
- subject: telecom wavelength
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 2D Materials
  issn: '20531583'
  volume: '10'
  issue: '2'
  article_number: '021001'

## Conference



## Related item



## Funding



## 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: 9765ee9b-8f97-402f-9824-8acd8345ddcb
  filename: Merino_2023_2D_Mater._10_021001.pdf
  content_type: application/pdf
  size: 1567018
  md5: 5052becff9a480dadf9fd2d23f6a7daf

## Thumbnail

fileset_id: 9765ee9b-8f97-402f-9824-8acd8345ddcb
filename: Merino_2023_2D_Mater._10_021001.pdf