1. Optimization of the double electron-electron resonance for C-centers in diamond
- Author
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Rubinas, Olga R., Soshenko, Vladimir V., Bolshedvorskii, Stepan V., Cojocaru, Ivan S., Vorobyov, Vadim V., Sorokin, Vadim N., Vins, Victor G., Yeliseev, Alexander P., Smolyaninov, Andrey N., and Akimov, Alexey V.
- Subjects
Physics - Instrumentation and Detectors ,Physics - Optics ,Quantum Physics - Abstract
NV centers in diamond recommend themselves as good sensors of environmental fields as well as detectors of diamond impurities. In particular, C-centers, often also called ${{p}_{1}}$-centers, can be detected via double electron-electron resonance. This resonance can be used to measure the C-center concentration. Here, we measured the concentration of C-centers in several diamond plates and investigated the influence of the free precession time of the NV center on the observed contrast in the measured double electron-electron resonance spectrum. The dependence of the resonance amplitudes and widths on the concentration of C-centers as well as the length of the combined C-center driving and NV-center $\pi$-pulse is also discussed. The optimal contrast-free precession time was determined for each C-center concentration, showing a strong correlation with both the concentration of C-centers and the NV-center ${{T}_{2}}$ time.
- Published
- 2021
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