High-Contrast Two-Frequency Optically Detected Resonances in Diamond Nitrogen-Vacancy Centers for Timekeeping Schemes
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-12-03 |
| Journal | IEEE Sensors Letters |
| Authors | A. K. Dmitriev, A. K. VershovskiÄ |
| Institutions | Ioffe Institute |
| Citations | 3 |
Abstract
Section titled āAbstractāNegatively charged nitrogen-vacancy (NV) centers are widely used in a precision metrology due to their unique properties, which allow spin states to be controlled at relatively high temperatures. The NV-centers are most widely used in magnetometry of ultrahigh spatial resolution, because the frequencies of the resonances in their optically detected spectra are magnetically dependent; however, over the past several years, new works have been published on the use of NV centers in a time metrology as well. The effectiveness of NV centers being used in this case is limited due to the strong dependence of the parameters of the centersā energy structure on the magnetic field, temperature, and pressure; nevertheless, their use as microdimensional microwave range frequency references remains very promising. In particular, zero-field level anticrossing can be used to suppress the sensitivity of narrow resonances to magnetic fields for metrological applications. In this letter, we present a method of two-frequency excitation of narrow magnetically independent optically detected resonances in bulk NV diamond in a zero magnetic field, and discuss the possibility of their use in timekeeping schemes.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2018 - Multi-frequency ODMR of nitrogen-vacancy color centers in diamond crystals in zero magnetic fields
- 2019 - Dual-frequency spin-resonance spectroscopy of diamond nitrogen-vacancy centers in zero magnetic field
- 1932 - Zur Theorie der Energieubertragung I