27 January 2017 Electric and magnetic sensing with NV ensembles in diamonds
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Abstract
We report measurements of optically detected magnetic resonance spectra of ensembles of nitrogen-vacancy (NV-) centers in diamonds in the presence of electromagnetic fields. To reduce inhomogeneous broadening, the spectra are acquired from a region of 20 cubic microns in a CVD(Chemical Vapor Deposition) diamond through a confocal microscope. The Stark shift from transverse electric fields is enhanced at avoided crossings between the hyperfine levels that arise from interaction with 14N(I = 1) nuclei in the diamond lattice. As expected from previous reports, the Stark shift of the spectral lines is stronger when there is no magnetic field along the NV axis. The shift is also strong, but for different transitions, at a field of about 100 uT.
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Sarvagya Sharma, Sarvagya Sharma, Chris Hovde, Chris Hovde, Fahad Alghannam, Fahad Alghannam, Douglas H. Beck, Douglas H. Beck, } "Electric and magnetic sensing with NV ensembles in diamonds", Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 101112W (27 January 2017); doi: 10.1117/12.2252562; https://doi.org/10.1117/12.2252562
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