Integrated Magnetometry Platform with Stackable Waveguide-Assisted Detection Channels for Sensing Arrays

@article{Hoese2020IntegratedMP,
  title={Integrated Magnetometry Platform with Stackable Waveguide-Assisted Detection Channels for Sensing Arrays},
  author={Michael Hoese and Michael K. Koch and Vibhav Bharadwaj and Johannes Lang and John P. Hadden and Reina Yoshizaki and Argyro N Giakoumaki and Roberta Ramponi and Fedor Jelezko and Shane M. Eaton and Alexander Kubanek},
  journal={Physical Review Applied},
  year={2020},
  volume={15}
}
The negatively-charged NV$^-$-center in diamond has shown great success in nanoscale, high-sensitivity magnetometry. Efficient fluorescence detection is crucial for improving the sensitivity. Furthermore, integrated devices enable practicable sensors. Here, we present a novel architecture which allows us to create NV$^-$-centers a few nanometers below the diamond surface, and at the same time in the mode field maximum of femtosecond-laser-written type-II waveguides. We experimentally verify the… 

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