Charge-state dynamics during excitation and depletion of the nitrogen-vacancy center in diamond
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2018-06-13 |
| Journal | Physical review. A/Physical review, A |
| Authors | Luke Hacquebard, Lilian Childress |
| Institutions | McGill University |
| Citations | 57 |
Abstract
Section titled âAbstractâThe charge state dynamics of the nitrogen-vacancy (NV) center in diamond play\na key role in a wide range of applications, yet remain imperfectly understood.\nUsing single ps-pulses and pulse pairs, we quantitatively investigate the\ncharge dynamics associated with excitation and fluorescence depletion of a\nsingle NV center. Our pulsed excitation approach permits significant modeling\nsimplifications, and allows us to extract relative rates of excitation,\nstimulated emission, ionization, and recombination under 531 nm and 766 nm\nillumination. By varying the duration between paired pulses, we can also\ninvestigate ionization and recombination out of metastable states. Our results\nare directly applicable to experiments employing stimulated emission-depletion\nimaging, and can be used to predict optimal operating regimes where excitation\nand stimulated emission are maximized relative to charge-state-switching\nprocesses.\n