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Coherent optical transitions in implanted nitrogen vacancy centers.

Y Chu1, N P de Leon, B J Shields

  • 1Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States.

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This summary is machine-generated.

Stable optical transitions were achieved in nitrogen-vacancy (NV) centers using annealing and surface treatment. This method enables high optical coherence for quantum device development.

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Area of Science:

  • Quantum Optics
  • Nanophotonics
  • Quantum Information Science
  • Materials Science

Background:

  • Nitrogen-vacancy (NV) centers in diamond are promising for quantum technologies.
  • Achieving stable optical transitions with high coherence is essential for device applications.
  • Ion implantation is a common method for creating NV centers.

Purpose of the Study:

  • To report the observation of stable optical transitions in ion-implanted NV centers.
  • To develop a reproducible method for creating high-quality NV centers.
  • To reduce spectral diffusion and enhance optical coherence in NV centers.

Main Methods:

  • Ion implantation to create NV centers.
  • High-temperature annealing and surface treatment for material refinement.
  • Resonant optical pumping to stabilize the NV(-) charge state.

Main Results:

  • Reproducible creation of NV centers with stable zero-phonon lines (ZPL).
  • Achieved spectral diffusion close to the lifetime-limited optical line width.
  • Demonstrated excellent optical coherence in a well-defined device layer.

Conclusions:

  • The developed method enables stable optical transitions in NV centers.
  • This technique is crucial for advancing diamond-based quantum devices.
  • The findings pave the way for practical quantum optics and information science applications.