Violet to Near‐Infrared Optical Addressing of Spin Pairs in Hexagonal Boron Nitride
Optically addressable solid-state spins are an important platform for practical quantum technologies. Van der Waals material hexagonal boron nitride (hBN) is a promising host as it contains a wide variety of optical emitters, but thus far observations of addressable spins have been sparse, and most of them lacked a demonstration of coherent spin control. Here, robust optical readout of spin pairs in hBN is demonstrated with emission wavelengths spanning from violet to the near-infrared. It is found that these broadband spin pairs exist naturally in a variety of hBN samples from bulk crystals to powders to epitaxial films, and can be coherently controlled across the entire wavelength range. Furthermore, the optimal wavelengths are identified for independent readout of spin pairs and boron vacancy spin defects co-existing in the same sample. These results establish the ubiquity of the optically addressable spin pair system in hBN across a broad parameter space, making it a versatile playground for spin-based quantum technologies.
Authors
- Igor Aharonovich (ORCID: https://orcid.org/0000-0003-4304-3935)
- Sam C. Scholten (ORCID: https://orcid.org/0000-0001-8494-9341)
- Alexander J. Healey (ORCID: https://orcid.org/0000-0003-3975-5972)
- Islay O. Robertson (ORCID: https://orcid.org/0000-0001-6477-517X)
- Hiroshi Abe (ORCID: https://orcid.org/0000-0001-9659-8382)
- Priya Singh (ORCID: https://orcid.org/0000-0003-4269-1383)
- David A. Broadway (ORCID: https://orcid.org/0000-0002-7375-8766)
- Mehran Kianinia (ORCID: https://orcid.org/0000-0003-4073-1492)
- Jean‐Philippe Tetienne (ORCID: https://orcid.org/0000-0001-5796-2508)
- Takeshi Ohshima (ORCID: https://orcid.org/0000-0002-7850-3164)
- Hark Hoe Tan (ORCID: https://orcid.org/0000-0002-7816-537X)
- Philipp Reineck (ORCID: https://orcid.org/0000-0003-1549-937X)
Institutions
- University of Technology Sydney (AU)
- Australian National University (AU)
- Tohoku University (JP)
- National Institutes for Quantum Science and Technology (JP)
- ARC Centre of Excellence for Transformative Meta-Optical Systems (AU)
- RMIT University (AU)
Publication Details
- Journal
- Advanced Materials
- Published
- 2025-02-18
- DOI
- https://doi.org/10.1002/adma.202414846
- Citations
- 9
- Primary Topic
- Diamond and Carbon-based Materials Research
- Type
- article
- Field-Weighted Citation Impact
- 4.66
Funders
- Australian Government
- RMIT University
- Australian Research Council
- Office of Naval Research Global