Tunable cavity coupling of the zero phonon line of a nitrogen-vacancy defect in diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-12-16 |
| Journal | New Journal of Physics |
| Authors | S Johnson, P. R. Dolan, T. Grange, A. A. P. Trichet, G Hornecker |
| Citations | 70 |
Abstract
Section titled āAbstractāWe demonstrate the tunable enhancement of the zero phonon line of a single\nnitrogen-vacancy color center in diamond at cryogenic temperature. An open\ncavity fabricated using focused ion beam milling provides mode volumes as small\nas 1.24 $\mu$m$^3$. In-situ tuning of the cavity resonance is achieved with\npiezoelectric actuators. At optimal coupling of the full open cavity the signal\nfrom individual zero phonon line transitions is enhanced by about a factor of\n10 and the overall emission rate of the NV$^-$ center is increased by 40%\ncompared with that measured from the same center in the absence of cavity field\nconfinement. This result is important for the realization of efficient\nspin-photon interfaces and scalable quantum computing using optically\naddressable solid state spin qubits.\n