Polarization-selective excitation of N-V centers in diamond

Details Polarization-selective excitation of N-V centers in diamond Polarization-selective excitation of N-V centers in diamond

2007-05-14

arxiv.org/abs/0705.2006v2

Phys. Rev. B, 76, 165205 (2007)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevB.76.165205

The nitrogen-vacancy (N-V) center in diamond is promising as an electron spin qubit due to its long-lived coherence and optical addressability. The ground state is a spin triplet with two levels ($m_s = \pm 1$) degenerate at zero magnetic field. Polarization-selective microwave excitation is an attractive method to address the spin transitions independently, since this allows operation down to zero magnetic field. Using a resonator designed to produce circularly polarized microwaves, we have investigated the polarization selection rules of the N-V center. We first apply this technique to N-V ensembles in [100] and [111]-oriented samples. Next, we demonstrate an imaging technique, based on optical polarization dependence, that allows rapid identification of the orientations of many single N-V centers. Finally, we test the microwave polarization selection rules of individual N-V centers of known orientation.

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