期刊
NEW JOURNAL OF PHYSICS
卷 18, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/18/1/013011
关键词
nitrogen-vacancy; P1 centers; NV centers; spin polarization; magnetic field alignment
资金
- NSF Graduate Research Fellowship [DGE1106400]
- National Science Foundation [NSF-1106288]
- Berkeley Research Impact Initiative (BRII) - UC Berkeley Library
We present a quantitative, systematic study of the polarization of the Zeeman magnetic sublevels of the NV-defect in diamond as a function of magnetic field alignment relative to the NV-defect axis. The orientation dependence of NV-polarization in the lab frame is accounted for by a Wigner rotation of a constant defect frame polarization. We also find that the NV-defect level polarizations vary with the P1 defect concentration, and that the polarization of the m(s) = 0 state with optical pumping decreases from 46% to 36% in samples as P1 concentrations vary from 20 ppm to 100 ppm, respectively.
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