Multi-wavelength spin dynamics of defects in hexagonal boron nitride

Ivan Zhigulin; Nicholas P. Sloane; Benjamin Whitefield; Konosuke Shimazaki; Jean-Philippe Tetienne; Mehran Kianinia; Igor Aharonovich

doi:10.1038/s41377-026-02398-z

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Multi-wavelength spin dynamics of defects in hexagonal boron nitride

Original Articles

- Multi-wavelength spin dynamics of defects in hexagonal boron nitride
- Multi-wavelength spin dynamics of defects in hexagonal boron nitride
- Light: Science & Applications 2026年15卷第8期页码：2534-2543
- Affiliations：
  
  1.School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia
  2.ARC Centre of Excellence for Transformative Meta-Optical Systems, University of Technology Sydney, Ultimo, NSW 2007, Australia
  3.Department of Physics, School of Science, RMIT University, Melbourne, VIC 3001, Australia
  4.Department of Physics, Kyung Hee University, Seoul 02447, Republic of Korea
- Author bio：
  
  Nicholas P. Sloane (Nicholas.sloane@uts.edu.au)
  Mehran Kianinia (Mehran.Kianinia@uts.edu.au)
- Funds：
- DOI：10.1038/s41377-026-02398-z
  中图分类号：
- 收稿：2026-02-04，
  
  修回：2026-06-03，
  
  录用：2026-06-16，
  
  网络首发：2026-06-25，
  
  纸质出版：2026-08-31
- Accepted：
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Ivan Zhigulin, Nicholas P. Sloane, Benjamin Whitefield, 等. Multi-wavelength spin dynamics of defects in hexagonal boron nitride[J]. Light: Science & Applications, 2026,15(8):2534-2543.

Zhigulin, I. et al. Multi-wavelength spin dynamics of defects in hexagonal boron nitride. Light: Science & Applications, 15, 2534-2543 (2026).
Ivan Zhigulin, Nicholas P. Sloane, Benjamin Whitefield, 等. Multi-wavelength spin dynamics of defects in hexagonal boron nitride[J]. Light: Science & Applications, 2026,15(8):2534-2543. DOI： 10.1038/s41377-026-02398-z.

Zhigulin, I. et al. Multi-wavelength spin dynamics of defects in hexagonal boron nitride. Light: Science & Applications, 15, 2534-2543 (2026). DOI： 10.1038/s41377-026-02398-z.

摘要

Abstract

Optically addressable solid-state spin defects are essential platforms for quantum sensing and information processing. Recently

single spin defects with combined S = 1 and S = ½ spin transitions were discovered in hexagonal boron nitride (hBN). In this work we unveil their excitation dynamics. In particular

we study the effects of the excitation wavelength on the spin-dependent fluorescence and the spin dynamics of these peculiar quantum spin defects. We find that changing the excitation wavelength leads to a threefold enhancement in both the optically detected magnetic resonance (ODMR) contrast and the corresponding magnetic field sensitivity. In addition

we find that the excitation wavelength has a strong impact on the photodynamics of spin complex emitters. Our work presents valuable insights to the mechanistic understanding of spin complex emitters in hBN and highlights the importance of excitation wavelength for optimising their performance in quantum sensing and quantum technologies.

关键词

Keywords

references

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