Yuan-Yao Feng, Zhong-Hao Li, Yang Zhang, Ling-Xiao Cui, Qi Guo, Hao Guo, Huan-Fei Wen, Wen-Yao Liu, Jun Tang, Jun Liu. Optimization of optical control of nitrogen vacancy centers in solid diamond [J]. Acta Physica Sinica, 2020, 69(14): 147601-1
- Acta Physica Sinica
- Vol. 69, Issue 14, 147601-1 (2020)
![(a) Energy level structure of NV center; (b) sketch of experimental setup; (c) sketch of timing sequence; (d) ODMR with a magnetic field along the [111] axis.](/richHtml/wlxb/2020/69/14/20200072/img_1.jpg)
Fig. 1. (a) Energy level structure of NV center; (b) sketch of experimental setup; (c) sketch of timing sequence; (d) ODMR with a magnetic field along the [111] axis.
Fig. 2. (a) Variation of signal intensity with polarization time at different laser intensity; (b) polarization time with different laser intensity.
Fig. 3. (a) Reading time with contrast ratio at different laser intensity; (b) best reading time with different laser intensity.
Fig. 4. Contrast ratio changing with different polarization angle of the laser.
Fig. 5. (a) ODMR before optimization; (b) ODMR after optimization.
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