Influence of magnetic field alignment and defect concentration on nitrogen-vacancy polarization in diamond. (24th December 2015)

• Record Type: Journal Article
• Authors: Drake, M; Scott, E; Reimer, J A
• Is Part Of: New journal of physics. Volume 18:Number 1(2016:Jan.)
• Publication Date: 2015-12-24
• Subjects: nitrogen-vacancy -- P1 centers -- NV centers -- spin polarization -- magnetic field alignment; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/18/1/013011
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: 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.