Charge state depletion nanoscopy with a nitrogen-vacancy center in nanodiamonds
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2021-12-01 |
| Journal | Optics Letters |
| Authors | Qi-Yu Wang, Zehao Wang, Bo Du, Xiang-Dong Chen, GuangāCan Guo |
| Institutions | University of Science and Technology of China |
| Citations | 2 |
Abstract
Section titled āAbstractāThe development of super-resolution imaging has driven research into biological labeling, new materialsā characterization, and nanoscale sensing. Here, we studied the photoinduced charge state conversion of nitrogen-vacancy (NV) centers in nanodiamonds (NDs), which show the potential for multifunction sensing and labeling at the nanoscale. Charge state depletion (CSD) nanoscopy is subsequently demonstrated for the diffraction-unlimited imaging of NDs in biological cells. A resolution of 77 nm is obtained with 50 nm NDs. The depletion laser power of CSD nanoscopy is approximately 1/16 of stimulated emission depletion (STED) microscopy with the same resolution. The results can be used to improve the spatial resolution of biological labeling and sensing with NDs and other nanoparticles.