Deep polarization of the ensemble nitrogen-vacancy centers in diamonds induced by an Airy beam with a long focal depth
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-05-10 |
| Journal | Optics Express |
| Authors | Si-Tong Ding, Ziyan Li, Ji Guo, Ning Zhang, Xiumin Gao |
| Institutions | Yancheng Institute of Technology, Fudan University |
| Citations | 1 |
Abstract
Section titled āAbstractāSolid-state spin systems with nitrogen-vacancy (NV) centers in diamonds constitute an increasingly popular platform for quantum sensing. However, most existing platforms designed with ensemble NV centers exhibit a sensitivity that is significantly less than the theoretical maximum. This low sensitivity limits the expansion of the experimental results and application areas. In this study, the sensitivity is improved by increasing the pumping depth of the excitation beam to increase the number of particles involved in spin polarization at a given laser intensity. Compared with the proposed Airy beam with a long focal depth (25.46 Ī») and the widely utilized Gauss beam pumping ensemble NV centers, the spin resonance factor f SR can be improved by 10.02%. This sensitivity-optimized approach enhances the functionality of sensors with NV centers.