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6CCVD Research

A robust, fiber-coupled scanning probe magnetometer using electron spins at the tip of a diamond nanobeam

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2024-10-01
JournalNew Journal of Physics
AuthorsYufan Li, G. Welker, Richard A. Norte, Toeno van der Sar
Citations1

Abstract

Section titled ā€œAbstractā€

Abstract Fiber-coupled sensors are well suited for sensing and microscopy in hard-to-reach environments such as biological or cryogenic systems. We demonstrate fiber-based magnetic imaging based on nitrogen-vacancy (NV) sensor spins at the tip of a fiber-coupled diamond nanobeam. We incorporated angled ion implantation into the nanobeam fabrication process to realize a small ensemble of NV spins at the nanobeam tip. By gluing the nanobeam to a tapered fiber, we created a robust and transportable probe with optimized optical coupling efficiency. We demonstrate the imaging capability of the fiber-coupled nanobeam by measuring the magnetic field generated by a current-carrying wire. With its robust coupling and efficient readout at the fiber-coupled interface, our probe could allow new studies of (quantum) materials and biological samples.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2008 - Nanoscale imaging magnetometry with diamond spins under ambient conditions [Crossref]
  2. 2008 - Nanoscale magnetic sensing with an individual electronic spin in diamond [Crossref]
  3. 2012 - A robust scanning diamond sensor for nanoscale imaging with single nitrogen-vacancy centres [Crossref]
  4. 2018 - Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond [Crossref]
  5. 2014 - Nitrogen-vacancy centers in diamond: nanoscale sensors for physics and biology [Crossref]
  6. 2013 - Optical magnetic imaging of living cells [Crossref]
  7. 2013 - Magnetic spin imaging under ambient conditions with sub-cellular resolution [Crossref]
  8. 2021 - Micromagnetic Tomography for Paleomagnetism and Rock-Magnetism [Crossref]
  9. 2017 - Real-space imaging of non-collinear antiferromagnetic order with a single-spin magnetometer [Crossref]
  10. 2019 - Probing magnetism in 2D materials at the nanoscale with single-spin microscopy [Crossref]

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