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The developments in quantum sensing protocols and nano-photonic waveguides are merged to improve the performance of single nitrogenvancancy (NV) centers in nuclear magnetic resonance (NMR) sensing. Nanopillars are designed with NV centers placed approximately 5 nm below the top facet and fabricated through a simple procedure, suitable for mass production. Fluorescence intensities from these nanopillars are 3.5 times greater than that of single shallow NV centers embedded in unstructured flat diamond. Quantum heterodyne measurements of an alternating magnetic field are performed with these nanopillars and evidence of improved peak clarity in the frequency spectrum is shown.

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• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

  This is the Accepted Manuscript version of an article accepted for publication in Applied Physics Express . IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1882-0786/acede9

Keyword: NV center, diamond, quantum sensing

Date published: 2023-08-01

Publisher: IOP Publishing

Journal:

• Applied Physics Express (ISSN: 18820786) vol. 16 issue. 8 082006

Funding:

• JST CREST JPMJCR1773
• MIC R&D for construction of a global quantum cryptography network JPMI00316
• Moonshot Research and Development Program JPMJMS2062
• Ministry of Education, Culture, Sports, Science and Technology JPMXS0118068379
• Japan Society for the Promotion of Science JP18H03766

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4734

First published URL: https://doi.org/10.35848/1882-0786/acede9

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Updated at: 2024-09-10 12:30:32 +0900

Published on MDR: 2024-09-10 12:30:32 +0900