High-sensitivity, spin-based electrometry with an ensemble of nitrogen-vacancy centers in diamond
| Autor: | Chen, Edward H., Clevenson, Hannah A., Johnson, Kerry A., Pham, Linh M., Englund, Dirk R., Hemmer, Philip R., Braje, Danielle A. |
|---|---|
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 95, 053417 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.95.053417 |
| Popis: | We demonstrate a spin-based, all-dielectric electrometer based on an ensemble of nitrogen-vacancy (NV$^-$) defects in diamond. An applied electric field causes energy level shifts symmetrically away from the NV$^-$'s degenerate triplet states via the Stark effect; this symmetry provides immunity to temperature fluctuations allowing for shot-noise-limited detection. Using an ensemble of NV$^-$s, we demonstrate shot-noise limited sensitivities approaching 1 V/cm/$\sqrt{\text{Hz}}$ under ambient conditions, at low frequencies ($<$10 Hz), and over a large dynamic range (20 dB). A theoretical model for the ensemble of NV$^-$s fits well with measurements of the ground-state electric susceptibility parameter, $\langle k_\perp\rangle$. Implications of spin-based, dielectric sensors for micron-scale electric-field sensing are discussed. Comment: 8 pages, 7 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|