Influence of magnetic field alignment and defect concentration on nitrogen-vacancy polarization in diamond

Autor: M Drake, E Scott, J A Reimer
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: New Journal of Physics, Vol 18, Iss 1, p 013011 (2015)
Druh dokumentu: article
ISSN: 1367-2630
DOI: 10.1088/1367-2630/18/1/013011
Popis: 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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