Optical coherence of diamond nitrogen-vacancy centers formed by ion implantation and annealing
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2019-04-19 |
| Journal | Physical review. B./Physical review. B |
| Authors | Suzanne van Dam, Michael Walsh, Maarten Degen, Eric Bersin, Sara Mouradian |
| Institutions | QuTech, Delft University of Technology |
| Citations | 120 |
Abstract
Section titled âAbstractâThe advancement of quantum optical science and technology with solid-state\nemitters such as nitrogen-vacancy (NV) centers in diamond critically relies on\nthe coherence of the emittersâ optical transitions. A widely employed strategy\nto create NV centers at precisely controlled locations is nitrogen ion\nimplantation followed by a high-temperature annealing process. We report on\nexperimental data directly correlating the NV center optical coherence to the\norigin of the nitrogen atom. These studies reveal low-strain,\nnarrow-optical-linewidth ($<500$ MHz) NV centers formed from\nnaturally-occurring $^{14}$N atoms. In contrast, NV centers formed from\nimplanted $^{15}$N atoms exhibit significantly broadened optical transitions\n($>1$ GHz) and higher strain. The data show that the poor optical coherence of\nthe NV centers formed from implanted nitrogen is not due to an intrinsic effect\nrelated to the diamond or isotope. These results have immediate implications\nfor the positioning accuracy of current NV center creation protocols and point\nto the need to further investigate the influence of lattice damage on the\ncoherence of NV centers from implanted ions.\n