Optical gain in NV- colour centres for highly-sensitive magnetometry: a theoretical study

@inproceedings{Savitski2017OpticalGI,
  title={Optical gain in NV- colour centres for highly-sensitive magnetometry: a theoretical study},
  author={Vasili G. Savitski},
  year={2017}
}
Optical gain in an amplifier based on NVcolour centres (CC) in diamond is proposed as a new method for optical magnetic field detection. An analytical expression for magnetic field sensitivity with this method is deduced. The sensitivity is highest at the pump intensities about 100 times above the saturation intensity of NVCC and can reach values of ~1.4 fT/√Hz in a pump-probe configuration with NVCC concentration in diamond of 2.5 ppm. Collection efficiency of probe emission can be simpler and… CONTINUE READING

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